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09471143 - Walnut Gulch below ARS Flume 6, near Tombstone, AZ - 08/02/2017 GPS Survey

Published by U.S. Geological Survey | Department of the Interior | Metadata Last Checked: January 27, 2026 | Last Modified: 2020-08-07T00:00:00Z
Continuous slope-area sensors are installed at four cross sections downstream from Flume 6 operated by the Agricultural Research Service (ARS) at the Walnut Gulch Experimental Watershed. The CSA reach was installed to test the CSA method and determine channel roughness using the known discharge measured by Flume 6. A flow event occurred on July 28, 2017. A GPS survey was conducted on August 2, 2017, to document the CSA pin elevations, cross section geometry at the CSA sensor locations, and high-water marks from the flow event.

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