Tracing of the original map showing the Grignon claim at Portage
1 : 31680 This map is pencil on tracing paper and shows marshes, the Wisconsin River, Indian trails, and Indian boundary line. The upper left corner reads: "Let sections 2, 3, 4, 9 in township no. 12 N. in range no. 9 East, and sections 33, 34 35 in Township 13 N. Range 9 East, be reserved for military purposes. (signed) Andrew Jackson."
Diagram of "claim no. 21," or Grignon's Tract : (Webb & Bronson's plat of the town of Fort Winnebago,) showing noted early points at Portage.
1 : 6200 This map shows the land claim owned by the Portage Canal Company and includes an index of landownership and landmarks. The Wisconsin and Portage River, the Portage Basin Canal, Fort Winnebago, and trails are labeled.
Map of Portage City, Wis. / compliments of Rebholz Company, clothiers and furnishers.
1 : 10632 This street map was likely given out by the Rebholz Company: Clothiers and Furnishers. The map shows labeled streets, train tracks, Silver Lake, Mud Lake, and the Wisconsin River. Rebholz Company Rebholz Company
Triangulation in Wisconsin
1 : 506880 This map shows names of triangulation stations, railroads, counties, rivers, and lakes. The Mississippi River, Lake Winnebago, and Lake Michigan are labeled. The upper right corner includes a key of markings. The map covers north to Eau Claire. Davies, John Eugene Wisconsin Geological Survey
A Geological Map of Wisconsin
1 : 1710720 This map shows counties, cities, rivers, canals, lakes, railroads, common roads, county towns, townships, villages, and post offices. The map includes part of the upper peninsula of Michigan. Lapham, Increase Allen