2015 Map of Mary Lake

About this map

Mary Lake sits high on the Central Plateau within the interior of Yellowstone National Park, surrounded by a network of pristine alpine drainage systems. This 2015 survey reveals a landscape dominated by the rise of Mary Mtn and the intricate headwaters of several notable creeks. The topography is defined by the thermal and volcanic history of the region, where water moves through the high-elevation basin via Nez Perce Cr and Spruce Cr. Other water features like Magpie Cr and Cowan Cr carve through the plateau, while the boundary between Teton and Park Counties passes through the western portion of the map. This map is an essential reference for understanding the hydrological patterns of the park's central wilderness before they converge into the larger river systems of the Wyoming high country.