R. Roy Johnson
Johnson & Haight Environmental Consultants, Tucson, AZ
Activity
2012
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Farouk El-Baz Award for Desert Research: 19TH CENTURY ARROYO CUTTING AND ITS AFTERMATH IN THE TUCSON BASIN
T137 Landscape Dynamics: Gullies and RiversTuesday, 6 November 20128:00 AM - 12:00 PM207A