1986 Map of Quadrant Mountain

About this map

Yellowstone National Park dominates this 1980s topographic study, capturing a high-elevation landscape at the border of Wyoming and Montana. The terrain is defined by the massive presence of Quadrant Mountain and the neighboring Little Quadrant Mountain, which rise above the basin known as Gardner Hole. This area serves as a primary drainage system for numerous waterways, where Gardner River meets tributaries like Glen Creek, Fawn Creek, and Panther Creek. A series of mountain summits including Sepulcher Mountain and Bannock Peak frame the wilderness. The map reveals the intricate network of the park's early trail systems and the isolation of features such as The Pocket and Cache Lake. This record provides a detailed look at the backcountry geography before modern shifts in park management and infrastructure, highlighting the geological complexity of the Gallatin Range's eastern edges.