Its mostly mountains on the western side of Colorado
In Colorado in the plains and in the mountains.
In Colorado, they are usually in the plains or in the mountains.
Plains are FLAT areas with NO mountains.
Mountains are found primarily in the western region of the US, including the Rocky Mountains and the Sierra Nevada. Plateaus are prominent in the southwestern US, such as the Colorado Plateau. Plains are located in the central and eastern parts of the US, including the Great Plains and the Coastal Plains.
Denver is located in the South Platte River Valley on the High Plains, which is east of the Front Range of the Rocky Mountains.
In Colorado, they are usually in the plains or in the mountains.
Western Colorado, eastern Colorado is plains/grassland.
Great Plains
mountains
In the high plains just east of the Rocky Mountains
Colorado