Arizona Geological Survey Digital Geologic Maps


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Published: 2018
This map depicts the geology of the Lewis Springs 7 ½' Quadrangle, which is located in the upper San Pedro Valley a few miles north of the U.S. – Mexico border. The quadrangle covers much of the...
Resource Identifiers: DGM-51

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Published: 2015
The map encompasses a drainage divide that separates the Colorado River catchment from the Red Lake Playa catchment. Valleys consist of gently sloping piedmonts covered by alluvial fan and terrace...
Resource Identifiers: DGM-114

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Published: 2015
The map encompasses a drainage divide that separates the Colorado River catchment from the Red Lake Playa catchment. Valleys consist of gently sloping piedmonts covered by alluvial fan and terrace...
Resource Identifiers: DGM-113

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Published: 2009
These geologic map sheets and report encompass the proposed State Route 95 Relocation Corridor in Mohave Valley, western Arizona, between the Black Mountains on the east and the Colorado River on...
Resource Identifiers: DGM-65

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Published: 2009
Structural measurements of deformation fabrics in Paleoproterozoic rocks within the map area were plotted on stereonets using Rick Allmendinger’s Stereonet software provided on his Cornell University...
Resource Identifiers: DGM-70

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Published: 2015
The Gene Wash 7.5' Quadrangle is located south of Lake Havasu City and includes part of Mohave and La Paz Counties of western Arizona and San Bernardino County, California. Only the Arizona part...
Resource Identifiers: DGM-110

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Published: 2018
Fort Thomas map area encompasses portions of the Fort Thomas, Geronimo, Bylas, and Gila Peak quadrangles in the Gila River Valley of Graham County, SE Arizona. This geologic map was funded in part...
Resource Identifiers: DGM-126

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Published: 2007
This map depicts the geology of the Fortuna 7 ½' Quadrangle and about 2.5 square miles of the northern end of the Gila Mountains that is in the adjacent Laguna Dam, Dome, and Ligurta 7 ½'...
Resource Identifiers: DGM-55

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Published: 2010
The Dolan Springs 7.5' Quadrangle encompasses part of Detrital Valley, the southernmost White Hills, and the northernmost Cerbat Mountains of northwestern Arizona. The map depicts the...
Resource Identifiers: DGM-81

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Published: 2015
The Cross Roads 7.5 Quadrangle is situated east and NE of the town of Parker in La Paz County, western Arizona. It encompasses the Buckskin Mountains in Arizona and part of the SE flank of the...
Resource Identifiers: DGM-111

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Published: 2019
This map depicts the geology of the Clarkdale 7 ½‘ quadrangle in northwestern Verde Valley. The bedrock geology depicted on the map is slightly modified from DeWitt et al. (2008), and surficial and...
Resource Identifiers: DGM-138

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Published: 2011
Chino Valley North 7 ½' Quadrangle covers portions of Big Chino Valley and Chino Valley and the uppermost reach of the Verde River, and includes the towns of Chino Valley and southern Paulden....
Resource Identifiers: DGM-80

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Published: 2004
The Buckeye NW 7.5-minute Quadrangle is located approximately 35 miles (60 km) west of downtown Phoenix. The map area covers the southwestern piedmont of the White Tank Mountains which merges to the...
Resource Identifiers: DGM-37

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Published: 2019
The Sierrita Mountains are a deeply eroded, ~1,000km2 Basin and Range uplift located 60km south of Tucson, southern Arizona, USA. The Sierritas are dominated by a 35km diameter, 600m-high bajada...
Resource Identifiers: DGM-32

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Published: 2002
The Buckeye Hills are located approximately 30-40 km west-southwest of Phoenix, Arizona, directly south of the Town of Buckeye (see figure 1). Regionally, the Buckeye Hills are sandwiched between...
Resource Identifiers: DGM-16

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Published: 2013
Quaternary geology was mapped for three 7.5 minute quadrangles in the Safford Basin, Graham County, AZ: Artesia, Safford, and Thatcher. The geologic mapping is original but informed by previous work...
Resource Identifiers: DGM-106

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Published: 2019
The Empire Ranch map area is bisected by the Davidson Canyon fault, a west-side-down normal fault zone up to 3km wide that post-dates deposition of Oligocene ignimbrites within moderately (30-45°)...
Resource Identifiers: DGM-143

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Published: 2019
Geologic Map of Green Valley 7.5' Quadrangle, Pima County, Arizona, 1 sheet, map scale 1:24,000.
Resource Identifiers: DGM-142

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Published: 2019
Geologic Map of the Helvetia 7.5' Quadrangle, Pima County, Arizona. One sheet, map scale 1:24,000.
Resource Identifiers: DGM-144

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Published: 2019
Geologic Map of Sahuarita 7.5' Quadrangle, Pima County, Arizona, 1 sheet, map scale 1:24,000.
Resource Identifiers: DGM-142

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