From the KLVX Steamboats on the Colorado Photograph Collection (PH-00156). Written on photo sleeve: "Salt mine. (Colorado River area)." Handwritten on verso: "Courtesy Special Collections UNLV."
'Compiled and published by Booker & Bradford, engineers, Tonopah, Nevada.' 'Copyrighted by Booker & Bradford 1903.' 'Photo-Lith. Britton & Rey, S.F.' Insets of Ray Mining District, vicinity map of Tonopah Mining District, Utopia Mining District, Tokop Mining District, Weepah Mining District, East Klondike Mining District, Gold Mountain, Tonopah Mining District and Red Mountain. Relief shown by hachures. Includes advertisements. Scale [ca. 1:10,800]. 1 inch to 900 feet.
Hand-drawn, hand-colored and annotated map showing the 280 foot level of the Combination Mine. Printed on map: 'Mohawk, col. el. 5958.48; Hayes & Monnette No. 2, col. el. 5935.7; Hayes & Monnette No. 1, col. el. 5925.8; Truett, col. el. 5938.8; Combination, col. el. 5986.31.'
Hand-drawn, hand-colored and annotated map showing the 600 foot, or third, level of the Clermont Mine. Handwritten at top of map: 'Clermont, 3rd level.'
From the Nye County, Nevada Photograph Collection (PH-00221) -- Series V. Smoky Valley, Nevada and Round Mountain, Nevada -- Subseries V.C. Lofthouse-Berg Families (Round Mountain).