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General Information

  • Title: General geology of the Harold D. Roberts tunnel, Colorado
  • Author(s): Robinson, C.S., Warner, L.A., and Wahlstrom, E.E.
  • Publishing Organization: U.S. Geological Survey
  • Series and Number: Professional Paper 831-B
  • Larger Work: Engineering geology of the Harold D. Roberts tunnel, Colorado
  • Publication Date: 1974
  • Map Scale: 1:24,000
  • Cross Section: Yes
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