[274] This resulted in Lake Mead dropping to its lowest recorded level since 1937, when it was first being filled. Park Maps Download PDF Map of the North Rim and Grand Canyon Lodge [186] On July 25, the name change was made official in House Joint Resolution 460 of the 66th Congress, over the objections of representatives from Wyoming, Utah, and the USGS, which noted that the Green River was much longer and had a larger drainage basin above its confluence with the Grand River, although the Grand contributed a greater flow of water. The Animas river is a major white water rafting attraction accounting for 8.9% of Colorado's commercial rafting market while annually generating 45,411 commercial user days and direct expenditures of $5,207,033 (2011 est). Díaz named the Colorado River Rio del Tizon ("Firebrand River") after seeing a practice used by the local natives for warming themselves. In the 21st century, they have filed legal claims against the governments of Arizona, New Mexico and Utah for increased water rights. [218] The Colorado River Aqueduct, which delivers water nearly 250 miles (400 km) from near Parker Dam to 10 million people in the Los Angeles metropolitan area, was completed in 1941. Ute and Southern Paiute Indian tribes, now living in reduced numbers on reservations, hunted and gathered in the plateaus and canyonlands of the upper Colorado basin for centuries. [93] The Colorado River first formed as a west-flowing stream draining the southwestern portion of the range, and the uplift also diverted the Green River, once a tributary of the Mississippi River, west towards the Colorado. The more aggressive tribes, such as the Utes and Navajos, often used horses to their advantage in raids against tribes that were slower to adopt them, such as the Goshutes and Southern Paiutes. Turnbull in financial difficulty, disappeared. [164] Powell led a second expedition in 1871, this time with financial backing from the U.S. Mean monthly high temperatures are 25.3 °C (77.5 °F) in the upper basin and 33.4 °C (92.1 °F) in the lower basin, and lows average −3.6 and 8.9 °C (25.5 and 48.0 °F), respectively. The 1,450-mile-long (2,330 km) river drains an expansive, arid watershed that encompasses parts of seven U.S. states and two Mexican states. With a distance of more than 2,341 miles, the Missouri River is among the longest rivers in North America. [196][197], One of the earliest water projects in the Colorado River basin was the Grand Ditch, a 16-mile (26 km) diversion canal that sends water from the Never Summer Mountains, which would naturally have drained into the headwaters of the Colorado River, to bolster supplies in Colorado's Front Range Urban Corridor. Some arid regions of the watershed, such as the upper Green River valley in Wyoming, Canyonlands National Park in Utah and the San Pedro River valley in Arizona and Sonora, supported extensive reaches of grassland roamed by large mammals such as buffalo and antelope as late as the 1860s. When they flow, both sides flow to the Gila River. While our area is known for its family-oriented raft trip on the Fisher Towers section of the Colorado River (The Moab Daily), people also enjoy canoes, kayaks and paddle boards to explore the calm water segments of the Colorado. ", "Colorado River Water Shortage Could be Declared in 2020", "Unprecedented Colorado River Water Shortage Could Be Declared in 2020", "Biotic Communities of the Colorado Plateau: Riparian Areas", "The Ecology of the Lower Colorado River from Davis Dam to the Mexico-United States International Boundary: A Community Profile", "Restoring Habitat for Riparian Birds in the Lower Colorado River Watershed: An Example from the Las Vegas Wash, Nevada", "Riparian Vegetation: Structural Diversity Benefits Birds", "Rafting the Colorado River Through the Grand Canyon", "Upper Colorado Special Recreation Management Area", "Recreation Fee Account Accomplishments: Colorado River (Moab)", "National Parks of the Colorado River Basin: Water Resources, Threats and Economics", "Effects of Mining on Water Quality in Upper Colorado River Basin", "Glen Canyon National Recreation Area Expanded Zebra Mussel Action Plan", "Lake Mead Proves Popular During Economic Downturn", "Worst Colorado River drought in century prompts feds to cut releases from Lake Powell", "The History of Large Federal Dams: Planning, Design and Construction in the Era of Big Dams", Colorado River Water Allocations by State, Drought in the Upper Colorado River Basin, Irrigation Water Withdrawals in the Colorado River Basin, Water Level Data for Major Colorado River Reservoirs, Lawrence Pratt Collection Concerning Arizona v. California and the Colorado River, Metropolitan Water District of Southern California, Drafting and ratification of Constitution, Office of the Director of National Intelligence, https://en.wikipedia.org/w/index.php?title=Colorado_River&oldid=996096776, Rivers of San Bernardino County, California, Articles containing Spanish-language text, Articles containing Maricopa-language text, Articles containing Havasupai-language text, Articles containing Yavapai-language text, Wikipedia articles with WorldCat-VIAF identifiers, Creative Commons Attribution-ShareAlike License, Colorado, Utah, Arizona, Nevada, California, Baja California, Sonora, mouth (average unimpaired flow), max and min at. Empties into Lake Mead dropping to its lowest recorded level since 1937 when... Almost 15 % of Texas including the reduction of saline drainage George Wheeler ’ s second largest River still its... 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