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2015 Map of Antelope Island

Name: 2015 Topographic Map of Antelope Island
Creator: U.S. Geological Survey
Published: 2015
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2015

About this map

Ft. Pierre National Grassland dominates the southern reaches of this landscape, where the rolling plains of Stanley County meet the massive waters of Lake Sharpe. The Missouri River serves as the primary geographic corridor, separating Stanley from Hughes County. This 2015 edition documents the intricate riverine environment, featuring large landmasses within the water like Antelope Island and the eastern edge of Farm Island.

Evidence of the region's drainage patterns is clear in the numerous draws and creeks that feed the river, including Taylor Draw, Mosteller Draw, and Mush Cr. The small community of Alto sits near the riverbank along SD Highway 34, providing a rare point of concentrated settlement. South of the river, the terrain is defined by a dense network of intermittent streams like Timber Cr and Antelope Creek, illustrating the complex hydrology of the South Dakota prairie.