Loading map...

1968 Map of Lima Dam

Name: 1968 Topographic Map of Lima Dam
Creator: U.S. Geological Survey
Published: 1972
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1972

About this map

Lima Reservoir dominates the high-altitude landscape of Beaverhead County in this late-1960s survey, marking a significant water management point in the Centennial Valley. The hydraulic engineering of the Lima Dam and its accompanying Spillway control the flow of the Red Rock River, a critical drainage for this part of southwestern Montana. The terrain is defined by its drainage patterns, with numerous seasonal and perennial watercourses like Exposure Creek and Little Basin Creek feeding into the valley floor from the surrounding heights.

The northeastern corner of the map reveals the southern boundary of the Beaverhead National Forest, where the topography climbs toward the Divide. This area remains largely undeveloped, characterized by a network of drainage basins including Clover Creek and Shineberger Creek. Sparse infrastructure is limited to a primary Trail and a Gaging Station, illustrating the remote and functional nature of this ranching and watershed region during the mid-20th century.