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Elevation: 12346ft, 3763m.
Articles that refer to this location:
Literature Referring To This Location:
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Blankenbuehler, Paige. 2012. Roberts Tunnel celebrates 50 years. Summit Daily News. {TAS-pdf}
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Bolmer, Robert L. 1961. Sinking a large-diameter, concrete-lined access shaft: Harold D. Roberts tunnel, Colorado. U. S. Bureau of Mines. Information Circular 8029. {TAS-pdf}
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Wahlstrom, Ernest E., and V. Q. Hornback. 1962. Geology of the Harold D. Roberts Tunnel, Colorado: West Portal to Station 468+49. Geological Society of America Bulletin. 73: 1477-1498. {TAS-pdf}
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Wahlstrom, Ernest E., Charles S. Robinson, and V. Quentin Hornback. 1981. Geology of the Western Part of the Harold D. Roberts Tunnel, Colorado (Stations 0+00 to 690+00). Geological Survey Professional Paper. 831-C. {TAS-pdf}
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Date and time this article was prepared:4:03:42 PM, 11/21/2019.
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Eastern Mojave Vegetation