1986 Map of White Lake

About this map

Yellowstone National Park reveals a complex landscape of geothermal activity and isolated wilderness in this mid-1980s study. The terrain is defined by a high concentration of hydrothermal features, including the Hot Spring Basin Group and the Whistler Geyser. Significant water bodies like White Lake, Fern Lake, and Tern Lake are connected by a network of drainage systems such as Sour Creek and Broad Creek. The mapping of these Thermal Areas and named springs like Josephs Coat Springs and Ponuntpa Springs highlights the delicate geological plumbing of the plateau. Human impact is represented only by a handful of established routes like the Pack Trail, emphasizing the area's preservation as a wild interior of the park during this era.