Across the Sangre de Cristo Range to the east of the San Luis Valley lies the Wet Mountain Valley.These basins, particularly the San Luis Valley, lie along the Rio Grande Rift, a major geological formation of the Rocky Mountains, and its branches.This region is partially protected from prevailing storms that blow in from the Pacific Ocean region by the high Rockies in the middle of Colorado.

Within the interior of the Rocky Mountains are several large parks which are high broad basins.

In the north, on the east side of the Continental Divide is the North Park of Colorado.

As well as crop agriculture, eastern Colorado hosts considerable livestock, such as cattle ranches and hog farms.

Roughly 70% of Colorado's population resides along the eastern edge of the Rocky Mountains in the Front Range Urban Corridor between Cheyenne, Wyoming, and Pueblo, Colorado.

The estimated population of Colorado was 5,540,545 on July 1, 2016, an increase of 10.17% since the 2010 United States Census.

The state was named for the Colorado River, which Spanish travelers named the Río Colorado for the ruddy silt the river carried from the mountains. Grant signed Proclamation 230 admitting Colorado to the Union as the 38th state.

This point, which holds the distinction of being the highest low elevation point of any state, A little less than one half of the area of Colorado is flat and rolling land.

East of the Rocky Mountains are the Colorado Eastern Plains of the High Plains, the section of the Great Plains within Nebraska at elevations ranging from roughly 3,350 to 7,500 feet (1,020 to 2,290 m).

) is a state of the United States encompassing most of the southern Rocky Mountains as well as the northeastern portion of the Colorado Plateau and the western edge of the Great Plains.

It is the 8th largest geographically and 21st most populous of the 50 states.

Denver is the capital and most populous city of Colorado.