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2021 Map of Frank Island

Name: 2021 Topographic Map of Frank Island
Creator: U.S. Geological Survey
Published: 2021
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2021

About this map

Yellowstone Lake dominates this wilderness landscape, centered on the prominent landmass of Frank Island and the jagged eastern shoreline of the lake. Within the boundaries of Yellowstone National Park, the map reveals a remote environment where human infrastructure is limited to the historic Thorofare Trl, which skirts the water's edge. This vital backcountry artery connects various geographical landmarks including Elk Point, Park Point, and Signal Point, providing the primary terrestrial access through the dense forests and steep drainage basins.

The topography is defined by the transition from the lake's surface to the high-elevation ridges of The Promontory and the surrounding wilderness. Several significant drainages, such as Cub Cr, Clear Cr, and Meadow Cr, flow westward into the lake, carving deep valleys into the terrain. Further south, the map captures the entrance to the Southeast Arm, while Plover Point marks a distinct geological feature along the southwestern shoreline, illustrating the complex hydrology of this high-altitude ecosystem.