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Condition map of Minnesota Trunk Highways: a 7,000 mile primary system showing national and state markings

1931. Minnesota. Department of Highways. Scale approximately 1:1,530,000. Description based on: 1932 sheet. Each sheet lists the Commissioner of highways and the Chief Engineer. On verso: ...

Condition map of Minnesota Trunk Highways: a 7,000 mile primary system showing national and state markings

1931. Minnesota. Department of Highways. Scale approximately 1:1,530,000. Description based on: 1932 sheet. Each sheet lists the Commissioner of highways and the Chief Engineer. On verso: ...