[2] It is classified as a Minor Rural Highway by the Colorado Department of Transportation.

[4] After passing 8th Street and exiting the town, SH 64 continues on in the Colorado Plateau bearing south-southeast as Dinosaur Diamond Prehistoric Highway, crossing into Rio Blanco after another mile.

About 4.2 miles (6.8 km) after it enters Rio Blanco County, SH 64 curves to the east and starts heading southeast to Rangely.

[2] At that time, the highway started from south of Dinosaur and went west into Utah, but it was changed in the middle of the 1940s.

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