Arizona Geological Survey Digital Geologic Maps
The Esperanza Mill 7 ½' Quadrangle is located approximately 40 km south-southwest of
downtown Tucson, and is on the southeast flank of the Sierrita Mountains. The quadrangle
encompasses the...
Resource Identifiers: DGM-33
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The McGrew Springs 7.5' Quadrangle is located in northwestern Cochise County about 45 miles southeast of Tucson, Arizona and lies south of the town of Benson. The western portion of the map...
Resource Identifiers: DGM-35
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This geologic map of the Twin Buttes 7.5' quadrangle, located south of Tucson in southern Arizona, includes both bedrock and surficial mapping. The map shows the 2120 level in the Twin Buttes...
Resource Identifiers: DGM-31
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This map details the bedrock geology, structural geology, surficial geology, geomorphology, and geologic hazards of the Fortified Peak 7.5'quadrangle located north of Oracle Junction along the...
Resource Identifiers: DGM-18
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The Oro Valley 7.5' Quadrangle covers an area, located approximately 25 km north of downtown Tucson, that extends over much of Oro Valley and includes parts of the adjacent Tortolita Mountains...
Resource Identifiers: DGM-21
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This map depicts the geology of the Wickenburg SW 7.5-minute quadrangle in Maricopa County, central Arizona. The map area is located south of Wickenburg and southwest of Highway 60. The map area...
Resource Identifiers: DGM-40
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This map depicts the geology of the Vulture Mine 7.5-minute quadrangle in Maricopa County, central Arizona. The map area is located southwest of Wickenburg and north of Interstate-10 along the...
Resource Identifiers: DGM-41
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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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The Tucson SE 7.5' quadrangle is located southeast of the city of Tucson, Arizona, between Wilmot and Houghton Roads and bisected by Interstate 10. Regionally, the map area is southwest of the...
Resource Identifiers: DGM-43
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The Daggs Tank 7.5-minute Quadrangle is located approximately 40 miles (60 km) northwest of downtown Phoenix on the east side of Hassayampa Plain. Much of the map area consists of the western...
Resource Identifiers: DGM-39
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Southeastern Arizona hosts one of the greatest concentrations of copper deposits on Earth. After more than a hundred years of geologic study, the porphyry-style and related copper deposits of...
Resource Identifiers: DGM-59 v1.1
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The Boundary Cone 7 ½' Quadrangle includes part of the Black Mountains and most of the piedmont
between the Colorado River floodplain and the Black Mountains southeast of Bullhead City, Arizona...
Resource Identifiers: DGM-54
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The North of Oracle 7½' Quadrangle is located in southeastern Pinal County about 30 miles north of Tucson, Arizona, and lies north and northwest of the town of Oracle. The northeastern corner...
Resource Identifiers: DGM-23
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The bedrock geology of the map area is dominated by several sets of rock units, as follows: (1) Variably mylonitic granitic and gneissic bedrock at the north flank of the map area forms the Rincon...
Resource Identifiers: DGM-44
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Abstract: The Flatiron Mountain 7.5' Quadrangle is located approximately 70 km (40 miles) west of downtown Phoenix, and is just north of Interstate Highway 10. The map area includes the...
Resource Identifiers: DGM-46
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The Wintersburg 7½' quadrangle is located 40 to 50 miles (70-80 km) west of downtown Phoenix. The map
area covers much of the piedmont between the Palo Verde Hills and the Hassayampa River and...
Resource Identifiers: DGM-47
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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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The Galleta Flat East 7.5' Quadrangle is located in northwestern Cochise County in southeastern Arizona, north of the town of Benson. The San Pedro River flows south to north across the...
Resource Identifiers: DGM-56
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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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Geomorphologic analyses and surficial geologic mapping provide information about the age
and type of alluvial deposits on piedmonts that is critical in assessing the character of piedmont
landforms...
Resource Identifiers: DGM-71
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