Sheep (10,635') and Little Sheep (9,679') Mountains are in a line heading northward from Mt. Mestas. Both of these mountains are composed of the same granitic stock materials as Mt. Mestas, Silver Mountain, Rough Mountain, and the Spanish Peaks. Climbing on them is climbing mostly on boulders and loose talus slopes. Even under the trees nearly everything is loose.
ARCO was drilling in this area a number of years ago, looking for natural gas. What they found was a large bubble of carbon dioxide. These days there is a pipeline running from this area down to the Permian Basin in west Texas carrying that CO2 to be pumped down injection wells to force the oil out.