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1958 Map of Patricks Basin, 1960 Print
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1958 Map of Patricks Basin

USGS Topo · Published 1960

About this map

Gibson Reservoir serves as a central landmark in this 1958 survey, where the Sun River is impounded at a spillway elevation of 4725 feet. This high-country landscape within the Lewis and Clark National Forest is defined by a network of drainage systems, including Beaver Creek and Allan Creek, which flow through a series of steep basins. The map documents sparse human infrastructure in the backcountry, notably the Klick Lower Ranch and a set of Sheep Sheds, illustrating the area's use for seasonal grazing and water management. High peaks such as Renshaw Mountain and Allan Mountain tower over Patricks Basin, while a primary Pack Trail provides the only significant overland access through the limestone formations of the Black Reef. Small alpine water bodies like Renshaw Lake and Hidden Lake are scattered across the southern high ground, away from the more developed reservoir infrastructure.

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Map Details

Date Portrayed1958
Date Published1960
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22 x 26.9 inches

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain