
The Sangamon River valley and its surrounding central Illinois prairie were undergoing significant suburban and infrastructure development by the mid-1980s. This planimetric study documents the expansion of Springfield toward the southeast, where Lake Springfield and Sangchris Lake serve as major hydrological and recreational hubs. The map highlights the region's deep connection to Abraham Lincoln through the preservation of the Lincoln Home Nat Hist Site and Lincoln's New Salem State Park near Petersburg. Transportation networks dominate the landscape, with the Illinois Central Gulf and Norfolk and Western railroads intersecting the grid of U.S. 66 and newer state routes. The presence of Sangamon State Univ and Lincoln Land Jr College reflects the area's growth as an educational center, while industrial roots remain visible in settlements like Decatur and Illiopolis.
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2 editions found
1907 · Springfield
USGS Topo · 1:62,500
1909 · Tallula
USGS Topo · 1:62,500
1911 · Lincoln
USGS Topo · 1:62,500
1913 · Lincoln
USGS Topo · 1:62,500
1922 · Divernon
USGS Topo · 1:62,500
1923 · Carlinville
USGS Topo · 1:48,000
1923 · Taylorville
USGS Topo · 1:62,500
1923 · Raymond
USGS Topo · 1:62,500
1924 · Divernon
USGS Topo · 1:62,500
1924 · Waverly
USGS Topo · 1:62,500