1968. 2011-12-12T21:40:33Z. 2022-03-29T20:41:02Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Michigan and Wisconsin.
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2. South Branch quadrangle, Michigan, 1968 7.5 minute series (topographic) / [cartographic material]
1968. 2020-01-22T20:10:44Z. 2020-01-29T22:35:05Z. Geological Survey (U.S.). U.S. Geological Survey. English. cartographic image. Public. Michigan, Huron National Forest (Mich.), Michigan., and Huron National Forest.
