Climate change will likely decrease the river’s flow by 5 to 20 percent in the next 40 years, says geoscientist Brad Udall, director of the University of Colorado Western Water Assessment. Less precipitation in the Rocky Mountains will yield less water to begin with.
http://www.smithsonianmag.com/science-nature/the-colorado-river-runs-dry-61427169/
From its source high in the Rocky Mountains, the Colorado River channels water south nearly 1,500 miles, over falls, through deserts and canyons, to the lush wetlands of a vast delta in Mexico and into the Gulf of California.
http://www.smithsonianmag.com/science-nature/the-colorado-river-runs-dry-61427169/
Near the source of the Colorado River inRocky Mountain National Park, Colorado About a mile (1.5 km) downstream from its source, the Colorado River has carved its first canyon, the narrow, deep Little Yellowstone Canyon.
http://www.answers.com/Q/Where_does_the_Colorado_river_end
The major tributaries of the Colorado River are the Gila, San Juan, Green, Virgin, Little Colorado and Gunnison Rivers. These rivers along with the Colorado make up the Colorado River Basin. The Colorado supports habitats for a variety of wildlife from native fish to over 300 bird species.
https://www.reference.com/geography/colorado-river-start-end-32a82f637b345ea1
According to the International Boundary and Water Commission, the Rio Grande River starts in the San Juan Mountains in Colorado and continues 1,901 miles to the Gulf of Mexico. It is among the 20 longest rivers in the world and is the fifth-longest in the United States.
https://www.reference.com/geography/colorado-river-start-end-32a82f637b345ea1
Then, beginning in the 1920s, Western states began divvying up the Colorado’s water, building dams and diverting the flow hundreds of miles, to Los Angeles, San Diego, Phoenix and other fast-growing cities.
http://www.smithsonianmag.com/science-nature/the-colorado-river-runs-dry-61427169/
The Rio Grande runs from the San Juan Mountains in Colorado through New Mexico, to El Paso, Texas, and along the border of Texas and Mexico, all the way to the Gulf of Mexico. It runs through the major cities of Santa Fe and Albuquerque in New Mexico. Full Answer >.
https://www.reference.com/geography/colorado-river-start-end-32a82f637b345ea1
The city is one of the largest in the Colorado River basin, but its share of the river is relatively small; when officials allocated the Colorado’s water to different states in 1922, no one expected so many people to be living in the Nevada desert. So Nevadans have gotten used to coping with limitations.
http://www.smithsonianmag.com/science-nature/the-colorado-river-runs-dry-61427169/
The Colorado River begins in north central Colorado and ends at the Gulf of California. The river is chiefly supplied by snow melting in the Rocky Mountains and passes through seven U.S. states and part of Mexico.
https://www.reference.com/geography/colorado-river-start-end-32a82f637b345ea1
The Missisissippi river is the longer than the Colorado River because the mississippi river is the longest river in america. The Mississippi river is about 2552 miles long flo…wing from Minnesota all the way to the Gulf of Mexico, while the Colorado River is only 1450 miles long flowing from Colorado rocky mountains to the Gulf of California.
http://www.answers.com/Q/Where_does_the_Colorado_river_end
where does the colorado river end
The Colorado river ends into the Gulf of California.   The Colorado river ends in the Gulf of California.