National Geographic Society (U.S.) · Washington : National Geographic Society · leaf 88
Photograph by lL. G. Folsom With some trepidation we approached ing, and as the obstructing hill was not over the fissured surface and discovered far away I decided, late as it was, to go that most of the steam issued from small forward and have a look. openings a few inches in diameter, THR VALLEY…
Geography
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
