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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.
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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.
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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.
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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.
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Date and time this article was prepared:5:36:20 PM, 11/3/2024.
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Eastern Mojave Vegetation