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1978 Map of Pleasant Hill West

Name: 1978 Topographic Map of Pleasant Hill West
Creator: U.S. Geological Survey
Published: 1978
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1978

About this map

The Mississippi River valley dominates this 1978 landscape at the border of Illinois and Missouri, where complex hydrology and river management define the terrain. Protected lands like the Mark Twain National Wildlife Refuge and the Clarksville State Game Refuge flank the river, interspersed with numerous islands such as Cash Island and Pharrs Island. The map records an intricate network of sloughs and lakes, including Upper Swan Lake and Halfmoon Lake, which illustrate the natural flood dynamics of the basin.

Settlement patterns follow the higher ground east of the river, anchored by Pleasant Hill and the village of Martinsburg. Local history is preserved in landmarks like Wells Cem and Sapp Cem, while the industrial and transport needs of the late 1970s are evident in the Illinois Central Gulf rail line and the Sixmlie Settling Basin. Near Clarksville, the transition from the river lowlands to the higher bluffs is marked by Jaeger Knob, providing a sharp contrast to the nearby The Sny bottomlands.