1940 Map of Mt Wallace

About this map

Gallatin National Forest and Yellowstone National Park converge in this high-altitude survey of the Gallatin Range and Absaroka Range. The landscape is dominated by peaks like Mt Wallace and Iron Mtn, with drainage basins feeding the Boulder River and Buffalo Fork. An interesting administrative detail appears along the southern edge, where the margin notes that the 45th parallel marks the Montana-Wyoming boundary, though the actual ground position was unknown during the survey. Human presence is limited to remote outposts such as the Hellroaring Ranger Station, Buffalo Fork Ranger Station, and Bull Moose Cabin, reflecting the era's focus on wilderness management and fire protection in the northern Rockies. The network of drainage features like Hellroaring Creek and Specimen Creek illustrates the complex hydrology of the region before modern development.