Keywords: stereoscopic stereophotography stereophotographs historical usgs history geology mapping black and white blackandwhite bnw stereograph blackandwhite monochrome outdoor black and white Camp near the mouth of Henry's Fork of Green River. Having as a background a portion of the hogbacks which rise ridge by ridge to the distant summits of the quartzite nucleus of the Unitas. Draggett Country, Utah. 1870. (Stereoscopic view) Camp near the mouth of Henry's Fork of Green River. Having as a background a portion of the hogbacks which rise ridge by ridge to the distant summits of the quartzite nucleus of the Unitas. Draggett Country, Utah. 1870. (Stereoscopic view) |