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1996 Map of Jefferson Island

Name: 1996 Topographic Map of Jefferson Island
Creator: U.S. Geological Survey
Published: 1998
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1998

About this map

Jefferson River currents define the northern boundary of this landscape, where the waterway meanders past Cardwell and the namesake Jefferson Island. The area is a complex intersection of river-bottom lowlands and significant uplands like the London Hills and Summit Valley. Human activity is marked by a mix of recreation and extraction, from the subterranean passages of Lewis and Clark Cavern State Park to the industrial legacy of the Mayflower Mine and various prospects scattered across the hills.

Genealogists and local historians can trace the small settlements of La Hood Park and Dogtown, or locate family sites near the South Boulder Cemetery. The presence of Grain Bins and a pipeline underscore the working nature of the land in the late twentieth century, while the southwestern corner transitions into the protected timber of the Deerlodge National Forest. This survey captures a moment when traditional ranching and mining footprints coexisted with modern infrastructure and conservation.