
The Grand River corridor anchors this study of Ionia County, highlighting the significant institutional footprint of the late 1970s. The northern bank is dominated by the city of Ionia, where the Ionia State Reformatory, Michigan Training Facility, and Ionia State Hospital represent a concentrated complex of state services and infrastructure. Beyond the urban core, the landscape transitions into a mix of river bottomland and agricultural plateaus, punctuated by rural junctions like Tremain Corners and Ferguson Corners.
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This is the sole edition of this map. No revisions or reprints were ever made.
1916 · Ionia
USGS Topo · 1:62,500
1918 · Ionia
USGS Topo · 1:62,500
1943 · Ionia
USGS Topo · 1:62,500
1945 · Portland
USGS Topo · 1:62,500
1954 · Midland
USGS Topo · 1:250,000
1958 · Midland
USGS Topo · 1:250,000
1958 · Grand Rapids
USGS Topo · 1:250,000
1959 · Midland
USGS Topo · 1:250,000
1961 · Grand Rapids
USGS Topo · 1:250,000
1962 · Grand Rapids
USGS Topo · 1:250,000