Mantle's Cave is a cliff alcove in Dinosaur National Monument in Moffat County, Colorado.

[2] The cave was found to have dwelling sites and granaries, with pottery shards, baskets and hunting tools recovered.

Little sign of long-term habitation was found, attributed to the cave's northern exposure and elevation of 5,365 feet (1,635 m), which would have made it an uncomfortable dwelling.

[2] Findings of the two expeditions were published by Burgh (with posthumous authorship by Scoggin) in 1948 as The Archeology of Castle Park, Dinosaur National Monument.

Located in Permian and Pennsylvanian Weber sandstone, the alcove stands just below the rim of a bench in the valley walls.

[2] The artifacts collected from Mantle's Cave are conserved at the University of Colorado Museum of Natural History.