Hawthorne, NV-CA, 1:250,000 quad, 1909, USGS
Historical Topographic Map Collection
Columbus, NV, 1:24,000 quad, 1967, USGS
Historical Topographic Map Collection
Columbus, Esmeralda County, Nevada, about 1880. There is an inscription on the back of the image: "The Pacific Borax Company was one of four companies mining…
