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2018 Map of Big Island Bridge

Name: 2018 Topographic Map of Big Island Bridge
Creator: U.S. Geological Survey
Published: 2018
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2018

About this map

The Green River carves a path through this arid landscape, defining the boundaries of the Big Island and the surrounding high plains. In this part of Sweetwater County, the land is marked by significant topographical shifts, from the deeply eroded Badlands Hills to the broad expanses of Stevens Flat. The network of watercourses, including Eightmile Wash, East Otterson Wash, and Water Gap Wash, underscores the importance of drainage and seasonal water flow in this high-desert environment.

Human activity is recorded through scattered landmarks and historical transit routes. The Emigrant Trl winds through the western terrain, a reminder of early westward passage. Local settlement is anchored by the Austin Ranch and Chrisman Ranch, while the presence of the Thoman School suggests a community that once served the rural ranching families of the area. Engineering and infrastructure are represented by the Big Island Bridge and Gasson Bridge, providing essential crossings over the river system, along with Pittman Well and Lombard Buttes as distinct navigational markers.