1991 Map of Castle Mountain

About this map

Castle Mountain stands as the centerpiece of this high-altitude landscape where the boundaries of the Custer National Forest, Gallatin National Forest, and Shoshone National Forest converge. This 1991 revision illustrates a transition in glacial geography, documenting persistent ice masses like Castle Rock Glacier and the Snowbank Glacier alongside numerous alpine lakes. The terrain is defined by the Absaroka - Beartooth Wilderness, a complex network of granite peaks including Castle Rock Spire and Sundance Mountain. Hydrological patterns are clear, with East Rosebud Creek draining northward and a dense concentration of smaller water bodies such as Vogel Lake, Twin Outlets Lake, and the Red Rock Lakes. The map preserves the specific 20th-century state of these alpine features, offering a baseline for studying the shifting margins of the region's snowfields and glaciers.