1951 Map of Upheaval Dome

About this map

The confluence of the Colorado River and the Green River defines this high-desert canyon landscape in San Juan County, mapped here just as the Atomic Energy Commission was intensifying its regional interest. The terrain is dominated by the circular structure of Upheaval Dome and the expansive plateaus of Buck Mesa and Grays Pasture. Natural water sources, critical for any human activity in this arid environment, are marked at Neck Spr, Holeman Spr, and Willow Seep. Evidence of ancient inhabitants is preserved at a Cliff Dwelling located near the river's edge. Dramatic topographical features like Junction Butte, Aztec Butte, and the Stillwater Rim illustrate the complex erosion patterns that have carved out names like Valentine Bottom and Tuxedo Bottom along the winding river corridors.