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1969 Map of Arrowrock Dam

Name: 1969 Topographic Map of Arrowrock Dam
Creator: U.S. Geological Survey
Published: 1982
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1982

About this map

Arrowrock Dam anchors this mountainous landscape where the Boise River is transformed into a series of massive reservoirs at the convergence of Boise, Ada, and Elmore counties. This 1969 field-checked survey reveals a rugged wilderness increasingly managed for public recreation, marked by the Macks Creek Recreation Site and Spring Shores Recreation Site along the winding shores of Lake Boise.

Beyond the water's edge, the terrain rises sharply to prominent peaks like Kepros Mtn 5428 and Three Point Mountain. The map detail traces the complex drainage of the area through numerous named gulches and creeks, including Mores Creek and Upper Blacks Creek. A rare sign of early human industry appears at the Prospect near the southern boundary, while the Lucky Peak Spillway and Wood Creek Enclosure reflect mid-century infrastructure and land management within the Boise National Forest.