Map of Fort Ripley as surveyed in 1874, showing the ninety square miles of reservation land on the east side of the river and one square mile for the actual post on the west side. The sale of parcels on the east side in 1857, and subsequent annulment of the sale, created legal problems that took twenty years to untangle. (From 46 Congress, 2 session, Senate Reports, no. 196, serial 1893.)

Map of Gooseberry Falls State Park created by the Minnesota Department of Natural Resources’ Division of Parks and Recreation in 1964 and revised in 1978. From page 22 of Rolf T. Anderson's National Register of Historic Places nomination form, September 1989, National Archives, Washington, DC.

Map of the Gunflint Trail, also known as Cook County Road 12, across northeastern Minnesota. The trail starts in Grand Marais and extends for 57 miles to Saganaga Lake. The map was created by Wikimedia Commons user Fredddie [sic] on July 28, 2015. GNU free documentation license 1.2.

Detail of a map of Lake Superior and its border lakes showing the location of Grand Portage. From Bruce White’s “Grand Portage as a Trading Post: Patterns of Trade at ‘The Great Carrying Place,’” a report prepared for the National Park Service (2005).