1957 Map of Mc Henrys Peak

A network of named peaks and passes, including McHenrys Peak, Hallett Peak, and Ptarmigan Pass, reveals the complex topography of the Front Range. The map illustrates a hydrological system of interconnected tarns such as Odessa Lake and Fern Lake, which feed into the Big Thompson River. This record preserves the early modern management of the park before the intensification of modern tourism, documenting the original trail systems and natural drainage patterns.