The theme this week is Geological Surveys. Local Identifier: 57-PS-431A, Photograph of the Grand Canyon Looking East from the Foot of Toroweap, Photograph by John K. Hillers (Powell Survey) Local Identifier: 57-HS-188, “Old Faithful in eruption, Yellowstone, 1872”, Photograph by William H. Jackson (Hayden Survey) Local Identifier: 57-HS-82, “The lower falls of Yellowstone, 1871”, Photograph … Continue reading Images of the Week: Geological Surveys
