1. Topographical map of Washoe mining region / U.S. Geological Surveys West of the 100th Meridian Creator: Geographical Surveys West of the 100th Meridian (U.S.) Published / Created: [1877] Call Number: 837gfc W27 1877 Container / Volume: BRBL_00595 Image Count: 2 Resource Type: Maps, Atlases & Globes Found in: Beinecke Rare Book and Manuscript Library > Topographical map of Washoe mining region / U.S. Geological Surveys West of the 100th Meridian ; Lieut. T.W. Symons, Dr. F. Kampf, field astronomy & triangulation ; Anton Karl, field topography.