
The southern Illinois orchard country and the high ridges of the Shawnee Hills define this modern survey of northwestern Union County. The village of Alto Pass sits at a significant elevation gap, overlooking the Alto Pass Reservoir and the headwaters of Cave Creek. To the south, the terrain rises toward the prominent landmark of Bald Knob, which is protected within the Bald Knob Wilderness. This landscape is deeply etched by a network of waterways including the Seminary Fork and Clear Creek, which have shaped the settlement patterns of rural communities like Mountain Glen and Kaolin.
88 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1920 · Jonesboro
USGS Topo · 1:62,500
1920 · Dongola
USGS Topo · 1:62,500
1922 · Carbondale
USGS Topo · 1:62,500
1923 · Dongola
USGS Topo · 1:62,500
1923 · Jonesboro
USGS Topo · 1:62,500
1924 · Alto Pass
USGS Topo · 1:62,500
1941 · Carbondale
USGS Topo · 1:62,500
1947 · Jonesboro
USGS Topo · 1:62,500
1947 · Alto Pass
USGS Topo · 1:62,500
1947 · Gorham
USGS Topo · 1:24,000