The Rocky Mountains region is known for having large oil shale reserves.

The Rocky Mountains region is known for its vast oil shale reserves, particularly in states like Colorado, Wyoming, and Utah. These oil shale deposits contain kerogen, a precursor to oil, which can be converted into synthetic crude oil through processes like heating and distillation. The region holds some of the largest known oil shale reserves in the world, but extracting oil from shale is technically challenging and costly. While oil shale has the potential to become an important energy resource, environmental concerns and the high energy requirements for extraction have hindered large-scale development.