The confluence of the Looking Glass River and the Grand River defines the town of Portland, which serves as the primary hub in this Michigan landscape. Moving south into Eaton County, the smaller agricultural communities of Sunfield and Mulliken anchor the lower portion of the sheet. The terrain is defined by a dense network of drainage systems, including the Carbaugh Drain and Stiffler Drain, which suggest a long history of water management to support the region's productive farmland.
107 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.
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
1949 · Charlotte
USGS Topo · 1:62,500
1950 · Nashville
USGS Topo · 1:62,500
1951 · Nashville
USGS Topo · 1:62,500
1958 · Grand Rapids
USGS Topo · 1:250,000
1961 · Grand Rapids
USGS Topo · 1:250,000
1962 · Grand Rapids
USGS Topo · 1:250,000