• Former national forests of Colorado(19 P)

A

• Arapaho National Forest(59 P)

G

• Grand Mesa National Forest(6 P)
• Gunnison National Forest(1 C, 48 P)

M

• Manti-La Sal National Forest(12 P)

P

• Pike National Forest(2 C, 38 P)

R

• Rio Grande National Forest(46 P)
• Roosevelt National Forest(40 P)
• Routt National Forest(25 P)

S

• San Isabel National Forest(1 C, 76 P)
• San Juan National Forest(2 C, 66 P)

U

• Uncompahgre National Forest(1 C, 61 P)

W

• White River National Forest(2 C, 71 P)

A

• Arapaho National Forest

G

• Grand Mesa National Forest
• Gunnison National Forest

M

• Medicine Bow–Routt National Forest

P

• Pike National Forest

R

• Rio Grande National Forest
• Roosevelt National Forest

S

• San Isabel National Forest
• San Juan National Forest

U

• Uncompahgre National Forest

W

• White River National Forest