View of a shallow, mined Gilsonite (trademark name for uintaite, a black lustrous asphalt) vein in the Bonanza District, either in Uintah County, Utah, or Rio Blanco County, Colorado; sagebrush surrounds the gash, with slag at left and right.
View of a vein of Gilsonite (trademark name for uintaite, a black lustrous asphalt) in the Bonanza District, either in Rio Blanco County, Colorado, or Uintah County, Utah; vertical mineshaft in foreground is surrounded by slag pile and shredded...
View of veins of Gilsonite (trademark name for uintaite, a black lustrous asphalt) in the Bonanza District, either in Rio Blanco County, Colorado, or Uintah County, Utah; a pathway leads to intermittent piles of uintaite slag marring the sagebrush...
Gilsonite--1910-1920.; Mining--1910-1920.
[1915?]
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