Mount Adams is a high mountain summit of the Crestones in the Sangre de Cristo Range of the Rocky Mountains of North America. The 13,937-foot thirteener is located in the Sangre de Cristo Wilderness, 5.1 miles east by north of the Town of Crestone, Colorado, United States, on the drainage divide separating San Isabel National Forest and Custer Co…Mount Adams is a high mountain summit of the Crestones in the Sangre de Cristo Range of the Rocky Mountains of North America. The 13,937-foot thirteener is located in the Sangre de Cristo Wilderness, 5.1 miles east by north of the Town of Crestone, Colorado, United States, on the drainage divide separating San Isabel National Forest and Custer County from Rio Grande National Forest and Saguache County.