Robert L. Christiansen

Identifiers

  • Open LibraryOL1801758A

Top Subjects

  • Geology, Stratigraphic -- Quaternary (2)
  • Geology, Stratigraphic -- Pliocene (2)
  • Volcanism -- Yellowstone national park (1)
  • Wyoming (1)
  • Pliocene (1)
  • Volcanic ash, tuff, etc. -- Wyoming -- Teton Co (1)
  • Geology -- Wyoming -- Teton Co (1)

Books by Robert L. Christiansen

Total count: 4