1938 Map of Mt Bonneville

About this map

The Continental Divide winds through this high-altitude landscape surveyed in the late 1930s, marking the boundary between Sublette and Fremont Counties. This portion of the Shoshone National Forest is defined by a dense concentration of alpine lakes and dramatic peaks, including the prominent Mt Bonneville and Mt Geikie. The presence of the South Fork Guard Sta near the South Fork Bull Lake Creek indicates the administrative footprint of the forest service during this era. A network of primitive routes, such as the High Line Trail and Fremont Trail, crisscross the ridges and basins, connecting remote water bodies like Grave Lake and Raid Lake. This map captures a wilderness before modern road expansion, where travel relied entirely on these established backcountry paths through terrain like Bonneville Basin and across Washakie Pass.