Colorado River.
major river in the western United States and Mexico
- Reports this week
- 3
- Active events
- 2
- Connections
- 206
What's happening
Active this week
Earlier this month
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Arizona and Nevada face severe water cuts due to deadlock over the Colorado River's impact on Lake Powell and Lake Mead.Well supported57 reports6 developments inside
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Diminished Colorado River flow affects Lake Powell, prompting discussions among upper-basin states and the Upper Colorado River Commission.Well supported4 reports2 developments inside
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Federal plans impose water cutbacks on Nevada, Arizona, and California, impacting the Colorado River and the city of Denver.Well supported10 reports11 developments inside
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Dwindling resources in the Colorado River basin affect shared users, prompting policy input from advocates.Well supported5 reports4 developments inside
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TEDxVail event focuses on water conservation efforts related to the Colorado River basin.Some support1 report
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Doug Burgum leads the administration's river plan amid a water crisis, which is tied to the gubernatorial race.Well supported5 reports1 development inside
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LA County water is imported from sources like the Colorado River, while WRD addresses a brackish groundwater plume.Some support1 report
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Robert Morris reports on water shortages resulting from the current depletion of the Colorado River.Some support2 reports
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Federal government formalized water guidelines for the Colorado River system, emphasizing reservoir levels in Lake Powell and Lake Mead.Well supported29 reports1 development inside
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Low river levels in the Colorado River force deep usage cuts in Arizona, challenging the Governor to balance industry growth against resource scarcity.Some support3 reports1 development inside
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Subdivisions are creating permanent water demand in Arizona related to the Colorado River.Some support1 report
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Utah's water diversion of Colorado River water threatens Nevada's water entitlement.Some support1 report
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State faces reduction in Colorado River water allocations while Mark Holmes advises the town of Chino Valley.Some support1 report
One to three months ago
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Water rights gains related to the Colorado River are impacting Social Security benefits.Some support2 reports
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Utah seeks national representation while dealing with Colorado River water scarcity and the congressional oversight of the NRC and DOE.Some support1 report
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Larson, a water law professor at Arizona State University, is noted in the context of a 1944 treaty allocating water to Mexico.Some support1 report
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A family with roots in Switzerland is advocating for water rights concerning the Colorado River.Some support1 report
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Dwindling supplies of the Colorado River are impacting the San Diego region.Some support2 reports
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Arizona asserts that the federal water management plans regarding the Colorado River fail to meet required legal standards.Some support1 report2 developments inside
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The shared management of the Colorado River system, including the Morelos Dam, governs the flow into the Gulf of California.Some support1 report3 developments inside
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Acciona proposes a desalination plant near the Gulf of California amid Arizona's reduced Colorado River supply.Some support1 report
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The Glen Canyon Dam operations are facing a critical juncture regarding the survival of the Humpback Chub, balancing ecological flow requirements against the demands of the Colorado River Basin and climate change.Well supported23 reports2 developments inside
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Local political figures debated changing city administration format during a campaign event.Some support1 report
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Denver Water manages the Gross Dam reservoir project on the Colorado River, which is governed by FERC orders.Some support3 reports1 development inside
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Amazon has committed funding to support the conservation of the Colorado River, advised by Michael Cohen.Some support1 report
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Amazon data centers are demanding water from the Colorado River.Some support2 reports
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The Glenwood Springs-based Colorado River District manages the river system through policy and planning.Some support1 report
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Low flow in the Colorado River threatens power generation at the Hoover Dam.Some support1 report
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Flash floods impacted the Colorado River and Grand Canyon National Park infrastructure.Well supported15 reports1 development inside
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River debris damaged canyon infrastructure in Grand Canyon National Park.Some support1 report
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The Colorado River system is under stress due to historic cuts, impacting Arizona's water supply and the operational status of Lake Mead.Well supported10 reports1 development inside
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Yuma, a city in Arizona, is involved in legal action alongside La Paz County to protect access to the Colorado River water supply.Some support2 reports
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The Colorado River flows through Grand Canyon, which is currently experiencing clogging issues that are impacting Lake Mead levels.Some support2 reports
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Drought pushed both the Colorado and Mississippi Rivers to the brink, according to academic analysis.Some support1 report
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The Bureau of Ocean Energy Management is imposing supply cuts and setting operating guidelines for the Colorado River basin states, including Arizona, Nevada, and California.Some support1 report
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Municipalities in Arizona, including Cave Creek and Phoenix, are drawing significant amounts of water from the Colorado River.Well supported30 reports
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The region adapts to reduced supplies of the Colorado River.Well supported3 reports
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A local body in Arizona is facing reduced water allocations from the federal government regarding the Colorado River, leading to calls for new regulations.Some support4 reports1 development inside
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Menlo Digital is building a data center campus in Arizona, facing scrutiny over its energy use (ASU study) and the recent cuts to the Colorado River water supply by the Department of Interior.Some support2 reports
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Mexico is a sovereign nation party to river agreements concerning the Colorado River.Some support1 report
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Colorado State University is involved in preserving records related to the division of the Colorado River, with past negotiations having taken place in Santa Fe.Some support5 reports
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Mandatory cuts threaten the Colorado River's flow.Some support1 report
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Federal mandates have initiated water cuts affecting Glendale, Arizona, which relies on the Colorado River and Salt River Project water.Some support1 report
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River cutbacks are accelerating the decline of the Salton Sea, which is affecting the environment of Borrego Springs.Some support1 report
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The Colorado River system is under strain from aging infrastructure and population growth, leading to water allocation issues affecting the agricultural sector in California.Some support1 report2 developments inside
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The Grand Canyon Chapter of the Sierra Club nominated waterways, while the U.S. DOT provided funds for bridge repairs near the park, noting Sycamore Creek is west of Sedona.Some support1 report
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David Schweikert commented to NBC News regarding the flash flood incident near Bright Angel Creek, which is connected to the Grand Canyon and the Colorado River.Some support1 report
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Flash flooding swept debris downstream near the Colorado River, reported by Dave Black.Some support1 report
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Craig Childs wrote about flood events in the Grand Canyon, noting that Bright Angel Creek is a major drainage leading to the Colorado River.Some support1 report
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Flash flooding warnings were issued for the area around Sweetwater Lake, prompting emergency road clearing operations.Some support1 report
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The article reports that the Colorado River flows through the Grand Canyon, alongside a separate mention of a chiropractor practice located in Granbury.Well supported9 reports
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Both the Democratic Republic of the Congo and the Colorado River basin face strategic resource shortfalls due to diminishing river flow caused by climate change.Some support2 reports1 development inside
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Flash floods impacted the Grand Canyon area, involving a specific campground and the river, with debris being swept into the Colorado River.Well supported93 reports
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NPS manages Grand Canyon operations in Arizona, where the Colorado River flows, with the Red Cross coordinating assistance.Well supported10 reports3 developments inside
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A flash flood occurred near the Colorado River in Arizona on August 31, 2026.Well supported4 reports
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Brownwood is investing in infrastructure improvements for Riverside Park, noting that the park trails follow the Pecan Bayou tributary.Some support1 report
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Park debris caused river traffic closures in the Grand Canyon National Park.Some support2 reports
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Ultra-marathon highlights river's future challenges, showing how river basin issues affect city planning.Some support1 report
No events began in the chosen period. Widen it, or reset.
What's reaching Colorado River
Events traced to Colorado River, step by step, newest first- Data center water use debate may increase regulatory focus on Colorado RiverData center water use concerns could increase regulatory focus on the Colorado RiverPossible
- Utah's geological hazards may impact Colorado River flow and qualityGeological hazards in Utah may impact Colorado River flow and qualityPossible
- Heavy Southwest rain may alter Colorado River flow and healthHeavy Southwest rainfall could cause immediate, strong changes to the Colorado River flowPossible
- Phoenix growth may increase strain on Colorado River water supplyPhoenix's growth may increase strain on Colorado River water supplyPossible
- Local monsoon rain offers temporary relief to Colorado River reservoirsLocal monsoon rain offers temporary relief to reservoirs but cannot solve Colorado River crisisPossible
- Farmland loss and wildfire risk may impact Colorado River water planningThe Colorado River may face new pressures from land use and wildfire risk planningPossible
See all 21 explainers
- Policy debates may increase climate stress on the Colorado RiverPolicy debates and DoA actions may increase climate stress on the Colorado RiverPossible
- Glacier loss may increase drought risk for Colorado RiverGlacier loss could increase drought risk, threatening Colorado River water supplyPossible
- Dam safety confirms stability of Colorado River water supplyDam safety confirms the stability of the critical Colorado River water supply.Likely
- Colorado River flow changes due to mountain water surgeThe Colorado River's flow is immediately altered by massive mountain water surgeAlready happening
- Heavy rainfall and flooding could alter Colorado River flowHeavy rainfall and flooding could alter Colorado River flowLikely
- Heat wave could strain Colorado River's essential water supplyThe heat wave could plausibly strain the Colorado River's essential water supplyPossible
- Mining expansion in Arizona and Colorado may stress Colorado RiverMining expansion in Arizona and Colorado may stress Colorado RiverPossible
- Arizona mineral discovery may increase demand on Colorado RiverPotential mining expansion in Arizona could strain Colorado River water supplyPossible
- Lack of groundwater oversight may increase stress on Colorado River systemIncreased regional water stress could negatively affect the Colorado River systemPossible
- Lawsuits challenge federal plan to cut Colorado River waterLegal challenges may prevent vast water cuts from the Colorado RiverPossible
- Drought conditions threaten Colorado River's long-term water supplyDrought and limited runoff threaten the long-term health of the Colorado RiverLikely
- Mercury Systems expansion could increase strain on Colorado RiverMercury Systems' expansion may increase strain on the Colorado River's water supplyPossible
- Forest restoration projects may improve Colorado River watershed healthForest restoration projects may improve watershed health for the Colorado RiverPossible
- Low reservoir levels threaten Colorado River flow and capacityThe Colorado River's capacity is declining due to record low reservoir levelsAlready happening
- How does Amazon's investment in water conservation projects affect Colorado River?Amazon's $100 million commitment to water projects aims to reduce draw on the Colorado River basin.Reported
Explainers that pass through Colorado River
Colorado River is a step on the way to someone else- How could monsoon storms affecting the Phoenix region influence Katie Hobbs's policy decisions?Monsoon storms may force Katie Hobbs to manage water and disaster responsePossible
- Lack of groundwater limits may increase strain on Colorado RiverLack of groundwater limits may increase strain on Colorado RiverPossible
- Reduced Colorado River water may threaten Grand Canyon Village operationsReduced Colorado River water may threaten Grand Canyon Village operationsPossible
- How could the legal challenge to federal water plans affect New Mexico?The lawsuit challenging federal water plans could alter Colorado River allocationsPossible
- Water cuts threaten Grand Canyon's ecosystem amid legal battleReduced river flow from water cuts could negatively impact the Grand CanyonPossible
- Water crisis lawsuits may protect Lake Powell from severe cutsLegal challenges to water cuts could stabilize Lake Powell's water levelsPossible
See all 12 explainers
- Legal challenge may force changes to Colorado River water deliveriesColorado may face pressure to reassess its water obligations amid legal challengePossible
- NV Energy may face higher costs amid Colorado River water crisisNV Energy may face increased operational costs due to Colorado River water scarcityPossible
- Drought conditions may strain Lake Powell's water supplyDrought and low snowpack threaten Lake Powell's long-term water supplyLikely
- Acciona's desalination proposal may help secure Las Vegas's water supplyAcciona's desalination proposal may help secure Las Vegas's water supplyPossible
- Low water levels threaten Lake Mead's stability and supplyLake Mead faces continued pressure due to record low water levels and management negotiationsLikely
- Southern Nevada may face mandatory water cuts from Colorado RiverSouthern Nevada faces potential mandatory water use reductions from the Colorado River.Reported
Around Colorado River this week
News at the entities that move Colorado River most-
Doug Burgum OperationalTrump signed an order requiring Burgum's approval, affecting livestock protection in Michigan and Minnesota.Moves Colorado River
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Lake Powell StructuralNational Park Service released visitation data for Lake Powell.Moves Colorado River
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Bureau of Ocean Energy Management StructuralDonald Trump appointed Doug Burgum as Interior Secretary, tasked with implementing administration orders focused on removing 'improper ideology' from national parks.Moves Colorado River
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Department of Natural Resources StructuralFires occurred in Rogersville, leading to an investigation by DPS and DNR that suspected rail activity as the cause.Moves Colorado River
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Colorado StructuralSalvation Army served residents in Loveland and Berthoud, Colorado, while NBC News conducted a national survey of food banks.Moves Colorado River
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Utah StructuralBoth Arizona and Utah host superb subterranean landforms.Moves Colorado River
Connections
The 40 strongest of 206, analyzed from the reporting. The bars show how strongly a change on one side reaches the other.-
Cave Creek Structural
Cave Creek is functionally dependent on the Colorado River as its primary and essential water source.
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Colorado Structural
Colorado fundamentally relies on the Colorado River for water supply, and the state actively manages and regulates the river's resources.
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Lake Powell Structural
Lake Powell is a critical reservoir component of the Colorado River system, receiving inflow and regulating downstream releases.
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Lake Mead Structural
Lake Mead is a critical reservoir that stores water from the Colorado River, fundamentally defining the river's flow and water management system.
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Denver Structural
Denver relies critically on the Colorado River system for its water supply, infrastructure, and city planning.
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Phoenix Structural
Phoenix relies critically on the Colorado River, which supplies a significant portion of its water needs.
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Gulf of California Structural
The river system flows into and terminates within the Gulf of California.
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Doug Burgum Operational
Burgum, in his official capacity, proposes and manages critical operational guidelines and water cuts for the Colorado River.
Show all 40 connections
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Hoover Dam Structural
The Hoover Dam's power generation is structurally dependent on the flow and volume of the Colorado River.
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Grand Canyon Structural
The Grand Canyon's physical structure and health are fundamentally defined and sustained by the flow and erosive action of the Colorado River.
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Angel Creek Structural
Angel Creek is a tributary that supplies water to the Colorado River.
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Arizona Structural
Arizona's municipal and agricultural functions are fundamentally dependent on the flow and health of the Colorado River.
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Utah Structural
The Colorado River physically flows through Utah, providing essential water resources that are subject to state legislative regulation.
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Nevada Structural
Nevada's water supply and resource management are fundamentally dependent on the flow and allocation of the Colorado River.
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Jack Schmidt Operational
Jack Schmidt is a researcher and director whose work focuses on the hydrological and ecological status of the Colorado River.
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Los Angeles Structural
Los Angeles' water supply is functionally dependent on the Colorado River, which impacts the region's water availability.
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MWD's operations and legal posture are fundamentally dependent on the flow and shortages of the Colorado River.
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Las Vegas Structural
The Colorado River's water supply is critical to the operational viability and water security of Las Vegas.
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Bureau of Ocean Energy Management Structural
The Bureau of Ocean Energy Management formally regulates and manages water usage and flow for the Colorado River.
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Earth Structural
The Colorado River is a critical functional component of the Earth system, influencing global resource availability and being subject to global water crises.
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Southern California Structural
The Colorado River provides essential water resources that dictate land use and function within Southern California.
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Los Angeles County Structural
LA County imports water for its supply from sources including the Colorado River.
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Gilbert Structural
Gilbert relies on the Colorado River for its critical potable water supply.
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Grand County Structural
Grand County serves as the headwaters source for the Colorado River, and its resource planning is constrained by the river's flow uncertainty.
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Longhorn Dam Structural
The dam is physically situated on the river, and its operations fundamentally influence the river's state.
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Shoshone Structural
The Shoshone group holds rights that govern and protect the flows of the Colorado River.
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New Mexico Structural
The Colorado River flows through and defines the basin context for the state of New Mexico, providing essential water resources.
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Imperial County Structural
Imperial County relies on the management and availability of the Colorado River water rights for its continued function.
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Congress Structural
The management and future of the Colorado River are dependent on legislative agreements made by Congress.
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Grand Canyon National Park Structural
The Colorado River is a geographical feature contained within the Grand Canyon National Park, and its flow and extreme events impact park operations and infrastructure.
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Las Vegas Valley Structural
The existence and viability of the Las Vegas Valley are functionally dependent on the resource provision of the Colorado River.
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Navajo Structural
The Navajo community relies on the Colorado River for clean water, which is currently insufficient for human demands.
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Angel Creek Structural
Angel Creek functions as a tributary, supplying water and debris into the Colorado River.
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Amazon Operational
Amazon utilizes the Colorado River basin for data center operations and simultaneously commits funding toward its conservation.
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Iid Structural
The company Iid relies on the availability and management of the Colorado River for its operations.
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Imperial Structural
The Imperial Valley relies on the Colorado River as its primary water source, leading to ongoing resource management conflicts.
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California Structural
The Colorado River serves as the critical, shared resource base upon which the existence and function of the state of California depend.
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Department of Natural Resources Structural
The governing authority for the Colorado River has been formally integrated into the Department of Natural Resources.
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HOPI Structural
The Hopi entity holds legal access to the flow of the Colorado River.
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California Structural
California relies on the Colorado River for a major portion of its water supply, which is subject to federal water cutbacks.
History
Events by the month they beganNovember 2026
2 eventsOctober 2026
11 events- TEDxVail event focuses on water conservation efforts related to the Colorado River basin.
- LA County water is imported from sources like the Colorado River, while WRD addresses a brackish groundwater plume.
- Subdivisions are creating permanent water demand in Arizona related to the Colorado River.
- Utah's water diversion of Colorado River water threatens Nevada's water entitlement.
- State faces reduction in Colorado River water allocations while Mark Holmes advises the town of Chino Valley.
- Water rights gains related to the Colorado River are impacting Social Security benefits.
- Utah seeks national representation while dealing with Colorado River water scarcity and the congressional oversight of the NRC and DOE.
- Larson, a water law professor at Arizona State University, is noted in the context of a 1944 treaty allocating water to Mexico.
- A family with roots in Switzerland is advocating for water rights concerning the Colorado River.
- Dwindling supplies of the Colorado River are impacting the San Diego region.
- Acciona proposes a desalination plant near the Gulf of California amid Arizona's reduced Colorado River supply.
September 2026
25 events- Low river levels in the Colorado River force deep usage cuts in Arizona, challenging the Governor to balance industry growth against resource scarcity.
- The shared management of the Colorado River system, including the Morelos Dam, governs the flow into the Gulf of California.
- Local political figures debated changing city administration format during a campaign event.
- Denver Water manages the Gross Dam reservoir project on the Colorado River, which is governed by FERC orders.
- Amazon has committed funding to support the conservation of the Colorado River, advised by Michael Cohen.
- Amazon data centers are demanding water from the Colorado River.
- The Glenwood Springs-based Colorado River District manages the river system through policy and planning.
- Low flow in the Colorado River threatens power generation at the Hoover Dam.
- River debris damaged canyon infrastructure in Grand Canyon National Park.
- Yuma, a city in Arizona, is involved in legal action alongside La Paz County to protect access to the Colorado River water supply.
- Drought pushed both the Colorado and Mississippi Rivers to the brink, according to academic analysis.
- The Bureau of Ocean Energy Management is imposing supply cuts and setting operating guidelines for the Colorado River basin states, including Arizona, Nevada, and California.
- The region adapts to reduced supplies of the Colorado River.
- Menlo Digital is building a data center campus in Arizona, facing scrutiny over its energy use (ASU study) and the recent cuts to the Colorado River water supply by the Department of Interior.
- Mexico is a sovereign nation party to river agreements concerning the Colorado River.
- Colorado State University is involved in preserving records related to the division of the Colorado River, with past negotiations having taken place in Santa Fe.
- Mandatory cuts threaten the Colorado River's flow.
- Federal mandates have initiated water cuts affecting Glendale, Arizona, which relies on the Colorado River and Salt River Project water.
- River cutbacks are accelerating the decline of the Salton Sea, which is affecting the environment of Borrego Springs.
- The Grand Canyon Chapter of the Sierra Club nominated waterways, while the U.S. DOT provided funds for bridge repairs near the park, noting Sycamore Creek is west of Sedona.
- David Schweikert commented to NBC News regarding the flash flood incident near Bright Angel Creek, which is connected to the Grand Canyon and the Colorado River.
- Flash flooding swept debris downstream near the Colorado River, reported by Dave Black.
- Craig Childs wrote about flood events in the Grand Canyon, noting that Bright Angel Creek is a major drainage leading to the Colorado River.
- Flash flooding warnings were issued for the area around Sweetwater Lake, prompting emergency road clearing operations.
- The article reports that the Colorado River flows through the Grand Canyon, alongside a separate mention of a chiropractor practice located in Granbury.
Show 3 earlier months
August 2026
15 events- Robert Morris reports on water shortages resulting from the current depletion of the Colorado River.
- Federal government formalized water guidelines for the Colorado River system, emphasizing reservoir levels in Lake Powell and Lake Mead.
- Arizona asserts that the federal water management plans regarding the Colorado River fail to meet required legal standards.
- Flash floods impacted the Colorado River and Grand Canyon National Park infrastructure.
- The Colorado River system is under stress due to historic cuts, impacting Arizona's water supply and the operational status of Lake Mead.
- The Colorado River flows through Grand Canyon, which is currently experiencing clogging issues that are impacting Lake Mead levels.
- A local body in Arizona is facing reduced water allocations from the federal government regarding the Colorado River, leading to calls for new regulations.
- The Colorado River system is under strain from aging infrastructure and population growth, leading to water allocation issues affecting the agricultural sector in California.
- Both the Democratic Republic of the Congo and the Colorado River basin face strategic resource shortfalls due to diminishing river flow caused by climate change.
- Flash floods impacted the Grand Canyon area, involving a specific campground and the river, with debris being swept into the Colorado River.
- NPS manages Grand Canyon operations in Arizona, where the Colorado River flows, with the Red Cross coordinating assistance.
- A flash flood occurred near the Colorado River in Arizona on August 31, 2026.
- Brownwood is investing in infrastructure improvements for Riverside Park, noting that the park trails follow the Pecan Bayou tributary.
- Park debris caused river traffic closures in the Grand Canyon National Park.
- Ultra-marathon highlights river's future challenges, showing how river basin issues affect city planning.
July 2026
3 events- Diminished Colorado River flow affects Lake Powell, prompting discussions among upper-basin states and the Upper Colorado River Commission.
- Federal plans impose water cutbacks on Nevada, Arizona, and California, impacting the Colorado River and the city of Denver.
- Doug Burgum leads the administration's river plan amid a water crisis, which is tied to the gubernatorial race.
June 2026
4 events- Arizona and Nevada face severe water cuts due to deadlock over the Colorado River's impact on Lake Powell and Lake Mead.
- Dwindling resources in the Colorado River basin affect shared users, prompting policy input from advocates.
- The Glen Canyon Dam operations are facing a critical juncture regarding the survival of the Humpback Chub, balancing ecological flow requirements against the demands of the Colorado River Basin and climate change.
- Municipalities in Arizona, including Cave Creek and Phoenix, are drawing significant amounts of water from the Colorado River.