
The unincorporated community of Putnam anchors this central Illinois landscape, situated just west of the extensive Senachwine Lake and the wetlands flanking the Illinois River. This modern survey reveals a countryside defined by the convergence of Bureau, Putnam, and Marshall counties, where the land transitions from the high, dissected bluffs overlooking the river valley to the level agricultural plateaus above. Historically significant sites for genealogists include several distinct burial grounds, such as Lone Tree Cem and Saint Francis Cem, alongside the local Putnam Cem. The drainage patterns of Senachwine Creek and Crow Creek have deeply carved the terrain, creating a network of wooded ravines that break up the geometric grid of county roads. Small-scale aviation markers like Ralph E Daniels Airport and Steil Airport suggest a continued reliance on private airfields within this rural Illinois River corridor.
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1893 · Lacon
USGS Topo · 1:62,500
1893 · Hennepin
USGS Topo · 1:62,500
1909 · Hennepin
USGS Topo · 1:62,500
1911 · Hennepin
USGS Topo · 1:62,500
1921 · Buda
USGS Topo · 1:62,500
1923 · Buda
USGS Topo · 1:62,500
1933 · Lacon
USGS Topo · 1:62,500
1933 · Camp Grove
USGS Topo · 1:48,000
1937 · Lacon
USGS Topo · 1:62,500
1945 · Bradford
USGS Topo · 1:62,500