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Robert Jensen

Robert Jensen is a native central Oregonian. He received a Bachelor of Science from Oregon State Univ and worked for Deschutes National Forest for 30 years as engineering geologist. Since retirement he has volunteered with the U.S. Geological Survey as a field assistant mapping the geology of Newberry Volcano for over 15 years. He authored a geologic field guide for Newberry Volcano and is a co-author of a number of publications on the geology of Newberry Volcano.

Author's Entries

  • Hole in the Ground

    Hole in the Ground is a spectacular bowl-shaped volcanic crater located on the western edge of the Fort Rock Basin and at the southern margin of lavas from Newberry Volcano. In maximum dimension, the crater is a mile across, with a depth of over 500 feet. It is located …

    Oregon Encyclopedia