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2017 Map of Petrolia Lake

Name: 2017 Topographic Map of Petrolia Lake
Creator: U.S. Geological Survey
Published: 2017
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2017

About this map

Petrolia Lake and the winding drainage of Flatwillow Cr characterize this remote landscape in Petroleum County. The map documents a sparsely populated ranching and badlands region where the topography is defined by significant erosion features such as Racehorse Coulee and Johnson Coulee. The primary infrastructure is the Petrolia Bench Rd, which traverses the high ground above the creek valleys.

Surface water is the central focus of the survey, tracing the paths of McDonald Cr, Box Elder Cr, and N Maginnis Cr through the arid terrain. Notable landmarks like Rattlesnake Butte provide vertical relief in an area otherwise marked by the deep incisions of the local creek systems. This record reflects the enduring isolation of central Montana, showing a landscape where geographic features and water access remain the primary markers of the land.