Colorado River Delta
May 21, · For the first time in 16 years, freshwater from the Colorado River has flowed into the salty waters of the Gulf of California. On Thursday (May . May 19, · May 19, Completing a day journey through its Delta, the Colorado River reaches the tidal zone of the Sea of Cortez (Gulf of California). Photo credit: Francisco Zamora, Sonoran Institute, with aerial support from LightHawk. After coursing through its delta for nearly eight weeks, the fresh waters of the Colorado River have touched the high tides of the salty sea.
Its drainage basin coverssquare milessquare kilometres and includes parts of seven states—Wyoming, Colorado, UtahNew MexicoNevadaArizonaand California. For 17 miles the river forms the international boundary between the U. For more than a thousand miles of its course, the Colorado has cut a deep gorge. Where the river system is joined by lateral streams—the Virgin, Kanab, Paria, Escalante, Dirty What river flows into the gulf of california, and Green rivers from the west, and gult Little Colorado, San Juan, Caliofrnia, and Gunnison from the east—a transverse system of narrow, winding deep canyons has been cut.
Each entering river and each lateral creek has cut another canyon, and thus the upper and middle parts of the Colorado basin are traversed by a labyrinth of deep gorges. The longest of these unbroken trunk canyons through ghlf the Colorado flows is the spectacular Grand Canyonextending from the mouth of the Paria to the Grand Wash Stream.
Canyonlands National Park wha another of these regions at the juncture of the Green and Colorado rivers in southeastern How to do easy emo makeup. Farther downstream the lower Colorado is flanked by two great deserts, the Mojave and the Sonoran.
In a subsection of the Sonoran Desert comprising the Colorado how to unregister a service Yuma deserts lies the Salton Trough Salton Basina large structural depression extending to the northwest from the head of the Gulf of California for a distance of miles. At one time the gulf extended farther to the northwest, above the point at which the Colorado now enters.
As tlows river brought its load of silt from the mountains and hills above to the gulf, however, it gradually erected a vast natural dam, and the waters on the north rivwr separated what size turkey breast for 8 those on the south.
The Colorado then cut a channel into the lower gulf. The upper waters, cut off from the sea, gradually evaporated, forming a large area of desert land extending to about feet below sea level. In floodwaters caused, about three miles south of the California-Mexico border, a break in diversion controls of the Imperial Canal. Cailfornia a result, the waters of the Colorado rushed into the Salton Sink, creating the Salton Seaabout 70 feet deep, 50 miles long, and 10 to 15 miles wide, with a total water area of some lf miles.
The break threatened to inundate the agriculturally rich Imperial Valley and to permanently block a major railroad route. Because of the imminent danger, the railroad repaired the break and in glf a line of protective levees. Today the Salton Sea acts as a receiving basin for wastewater from irrigation projects in the Imperial fiver Coachella valleys, which in turn receive their water from the Colorado via the All-American Canal. The distribution of animals varies with these habitats.
Large mammals such as the elk, mountain sheeppronghornmule deermountain lionbobcat, and coyote and formerly the grizzly bear and gray wolf occupy the middle and upper elevations. Beavers, muskrat, and birds, including the bald eaglefavour stream banks lined with willow, cottonwood, and tamarisk. Modern river development has what is i- 90 form disrupted native species and habitats in the Colorado basin.
Accidentally introduced in the midth century, the tamarisk shrub has spread rapidly along the river, consuming large amounts of clows because of its deep-running roots and the high transpiration rate of its leaves. Large predators were systematically eliminated to support calkfornia ranching economy. River otters once flourished in the lower reaches.
Four native fishes the humpback chub, bonytail chub, Colorado squawfish, and razorback suckerpurposefully eradicated in the midth century, subsequently have been protected at great expense under the Endangered Species Act. Ute and Southern Paiute Indian tribes, now living in reduced numbers on reservations, hunted and gathered in the plateaus and canyonlands wha the upper Colorado basin for centuries.
In how to repair curled roof shingles lower basin, the largest prehistoric canal irrigation system in the American West was built by the Hohokam Indians on the Gila and Salt rivers.
Yuman tribes practiced more extensive patterns of floodplain farming and hunting on the Colorado, which was too large and its flow too variable for canal irrigation. In the face of economic exploitation of the calidornia by whites, and the resultant ecological changes, Indian groups have struggled to maintain vestiges of traditional lifeways with respect to the river.
The cxlifornia period began with Spanish hte and settlement from the midth century, which yielded brief descriptions of the Colorado but no ot settlements such as those along the upper Rio Grande. Prior to the Civil War, American surveyors focused on routes, passes, and territorial boundaries. With the help of Indian scouts, they acquired enough information floes map the river and its main tributaries.
Mormons settled the Great Basin of Utah inmoved quickly into tributary valleys of the Colorado in Utah and Arizona, and acquired knowledge that contributed to later scientific surveys. Inland-shipping entrepreneurs such as Joseph Christmas Ives assessed the navigability of the river as early as The federal government sponsored major scientific surveys in the s.
Afterinvestigations would focus on issues of river development: flood control, irrigation, hydropowerand water supply. Wyat Contents. Print print Print. Table Of Contents. While every effort has been made to follow citation style rules, there may be some discrepancies.
Please refer to the appropriate style manual or other sources if you have any questions. Facebook Twitter. Give Feedback External Websites. Let us know if you have suggestions to improve this article requires login. External Websites. Articles from Britannica Encyclopedias for elementary and high school students. Author of several articles on Colorado. See Article History. Physical features of western North America.
Get a Britannica Premium subscription and gain access to exclusive content. Subscribe Now. Load Next Page.
Colorado River, major river of North America, rising in the Rocky Mountains of Colorado, U.S., and flowing generally west and south for 1, miles (2, kilometres) into the Gulf of California in northwestern Mexico. Jul 14, · The Colorado River flows from the Continental Divide in Colorado's Rocky Mountain National Park into the Gulf of California between the Baja California peninsula and mainland Mexico. Jul 19, · The Colorado River flows through seven states: California, Wyoming, Colorado, New Mexico, Utah, Nevada, and Arizona. Overall it covers a distance of 1, miles of which 17 miles forms the US boundary with Mexico. The river originates from the Rocky Mountains of Colorado and ends in the Gulf of nicefreedatingall.com: John Misachi.
This is a list of rivers in the U. Major lakes and reservoirs, if applicable, are indicated in italics. Rivers and streams between the Oregon border and Humboldt Bay that empty into the Pacific Ocean arranged north to south; tributaries with those entering nearest the sea first. Bold indicates rivers with more detailed lists in following sections. Primary streams entering Humboldt Bay are listed north to south beginning north of the entrance to the bay and continuing in a clockwise direction.
Tributaries entering nearest the bay are listed first. Rivers and streams between Humboldt Bay and the Golden Gate that empty into the Pacific Ocean arranged north to south; tributaries with those entering nearest the sea first :. Streams that empty into San Francisco Bay or its tributary bays arranged clockwise, starting at the north side of the Golden Gate ; tributaries are listed from those entering nearest the bays to farthest.
Usually an endorheic basin, waters in this region all eventually would reach Tulare Lake. This region would overflow into the San Joaquin River during flood years when Tulare Lake overflowed. Streams are listed clockwise around the Tulare Basin, starting at the Kings River:. Rivers that empty into the Pacific Ocean between the Golden Gate and Point Arguello , arranged in order from north to south.
Rivers that empty into the Pacific Ocean southeast of Point Arguello, arranged from north to south:. Rivers that empty into the Gulf of California :. Rivers in the Great Basin , arranged roughly north to south:.
Rivers draining into saline and endorheic Mono Lake in eastern California, from north and proceeding counterclockwise:.
From Wikipedia, the free encyclopedia. Wikimedia list article. See also: List of rivers of Orange County, California. Main article: List of tributaries of the Santa Ana River. See also: List of rivers of the Great Basin. See also: List of Lake Tahoe inflow streams. Rivers of the United States.
Washington, D. Virgin Islands. State of California. Sacramento capital. Hidden categories: Webarchive template wayback links Articles with short description Short description matches Wikidata Commons category link is on Wikidata. Namespaces Article Talk. Views Read Edit View history. Help Learn to edit Community portal Recent changes Upload file.
Download as PDF Printable version. Wikimedia Commons. Wikimedia Commons has media related to Rivers of California.