Geologic Map of the Saint David 7½’ Quadrangle, Cochise County, Arizona v 3.0

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Author
Youberg, A.
Cook, J.P.
Affiliation
Arizona Geological Survey
Issue Date
2018-09
Keywords
Arizona Geological Survey Digital Geologic Map
piedmont
San Pedro Valley
river terrace
Cochise County
Dragoon Wash
Holocene
Pleistocene
Pliocene
Quaternary

Metadata
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Citation
Youberg, A., Cook, J.P., 2018, Geologic Map of the Saint David 7½’ Quadrangle, Cochise County, Arizona: Arizona Geological Survey Digital Geologic Map 48 (DGM-48), version 3.0, 1 sheet, layout scale 1:24,000
Publisher
Arizona Geological Survey (Tucson, AZ)
Description
The Saint David 7½' Quadrangle is located approximately 55 miles (88 km) west of downtown Tucson. The map area encompasses the town of Saint David, a portion of the San Pedro River corridor, and the western piedmonts of the Little Dragoon and Dragoon mountains. The San Pedro River flows north from Mexico to the Gila River. It occupies a broad valley inset below adjacent Pleistocene piedmont alluvial fans. The river is incised several meters below adjacent terraces and recently abandoned floodplains. Entrenchment occurred between 1890 and 1908 as a result of a series of large floods in conjunction with changing land uses and population growth (Hereford, 1993). Once entrenched the channel widened to its current width and eventually stabilized in the mid-1950s (Hereford, 1993).
URI
http://hdl.handle.net/10150/631079
Additional Links
http://repository.azgs.az.gov/uri_gin/azgs/dlio/635
Language
en
Series/Report no.
DGM-48 v3.0
Rights
Arizona Geological Survey. All rights reserved.
Collection Information
Documents in the AZGS Documents Repository collection are made available by the Arizona Geological Survey (AZGS) and the University Libraries at the University of Arizona. For more information about items in this collection, please contact azgs-info@email.arizona.edu.
North Bounding Coordinate
32
South Bounding Coordinate
31.875
West Bounding Coordinate
-110.25
East Bounding Coordinate
-110.125
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