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2020 Map of Tiber Dam

Name: 2020 Topographic Map of Tiber Dam
Creator: U.S. Geological Survey
Published: 2020
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2020

About this map

Tiber Dam serves as the structural heart of this Liberty County landscape, impounding the waters of the Marias River to form the expansive Lake Elwell. This 2020 survey documents the complex water management system and transportation infrastructure of the high plains, including the Tiber Dam Camp and the small Tiber Dam Airport located just south of the main spillway. The topography is defined by significant drainage features such as Sixmile Coulee and Crooked Coulee that cut through the terrain toward the river valley.

Downstream, the river meanders through a series of dramatic bends, crossed by Pugsley Bridge as it flows toward the southeast corner of the quadrangle. Local road networks like Mountain Highway 366 and Pugsley Rd connect the dam site to outlying agricultural areas and smaller water features like Pugsley Reservoir. The map provides a clear record of the modern interface between the controlled river environment and the natural coulee systems like Pondera Coulee and Spring Coulee.