| Upper right quadrant | |
| Lower right quadrant | |
| "Washington Territory East of the Cascade Mtns. Showing Topography of the Mines Region" (Map No. 1). In U. S. House. 37th Congress, 3d Session. Annual Message of the President, 1862, Pt. 5: Maps (H.Ex.Doc.1). Washington: Government Printing Office, 1862. (Serial Set 1160). | |
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