Geologic Map of the Boulder Mountain 7.5' Quadrangle, Maricopa and Gila Counties, Arizona

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Author
Skotnicki, S.J.
Leighty, R.S.
Issue Date
1998
Keywords
Arizona Geological Survey Open File Reports
Sycamore Creek
State Route 87
Mazatzal Mountain
Boulder Mountain
Gila County
Maricopa County
topography
map
Geology

Metadata
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Citation
Skotnicki, S.J. and Leighty, R.S., 1998, Geologic Map of the Boulder Mountain 7.5' Quadrangle, Maricopa and Gila Counties, Arizona. Arizona Geological Survey Open File Report, OFR-98-15, 1 map sheet, map scale 1:24,000, 17 p.
Publisher
Arizona Geological Survey (Tucson, AZ)
Description
The Boulder Mountain quadrangle is centered on the northwest side of the southern Mazatzal Mountains. It includes the area from the ridge-line westward to State Route 87 and the area between the Ballentine trailhead on the south and the small hamlet of Sunflower on the north (see figure 1). The elevation ranges from 2200 feet along Sycamore Creek to over 6200 feet at Pine Mountain. The western parts of the region below about 4000 feet are within the Sonoran Desert and contain saguaro cactus, palo verde, and Sonoran desert vegetation. The highest, north-facing peaks of the Mazatzal Mountains--including Pine Mountain, Little Pine Flat, and Edwards Park-contain conifer and oak forests. But most of the area above 4000 feet is covered with an impenetrable blanket of dense chaparral vegetation. The thick brush combined with the precipitous boulders and deep crags make access to most of the eastern half of the quadrangle extremely difficult. The pipeline trail and the Ballentine Trail were deeply rutted and overgrown.
URI
http://hdl.handle.net/10150/630915
Additional Links
https://library.azgs.arizona.edu/item/AOFR-1552431700604-140
Language
en
Series/Report no.
OFR-98-15
Rights
Arizona Geological Survey. All rights reserved.
Collection Information
Documents in the AZGS Document 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
33.875
South Bounding Coordinate
33.75
West Bounding Coordinate
-111.5
East Bounding Coordinate
-111.375
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