
Mitchell and Orleans serve as the primary population centers on this mid-century survey, connected by the north-south transit of the Monon railroad. The landscape is defined by the unique karst topography of southern Indiana, specifically within the Spring Mill State Park boundaries. Here, a cluster of subterranean features including Hamer Cave, Donaldson Cave, and Twin Caves highlights the region's complex drainage system. This geological character is further evidenced by the path of the Lost River in the south. Academic and local history interests are represented by the Purdue Experimental Orchard and the historic Spring Mill Village. A significant historical boundary, the Indian Treaty Boundary, cuts diagonally across the terrain, marking an earlier era of land division and settlement near Tom Rice Hill.
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5 editions found
1934 · Bedford
USGS Topo · 1:48,000
1935 · Oolitic
USGS Topo · 1:48,000
1937 · Bedford
USGS Topo · 1:62,500
1942 · Oolitic
USGS Topo · 1:62,500
1949 · Georgia
USGS Topo · 1:24,000
1950 · Mitchell
USGS Topo · 1:24,000
1951 · French Lick
USGS Topo · 1:24,000
1951 · Georgia
USGS Topo · 1:24,000
1956 · Vincennes
USGS Topo · 1:250,000
1957 · Vincennes
USGS Topo · 1:250,000