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U.S. Geological Survey Open-File Report 2013–1007

Prepared in cooperation with the Navajo Nation

Bedrock and Surficial Geologic Map of the Satan Butte and Greasewood 7.5’ Quadrangles, Navajo and Apache Counties, Northern Arizona

By Lee Amoroso, Susan S. Priest, and Margaret Hiza-Redsteer

Thumbnail of and link to map PDF (3.7 MB)Introduction

The geologic map of the Satan Butte and Greasewood 7.5’ quadrangles is the result of a cooperative effort of the U.S. Geological Survey (USGS) and the Navajo Nation to provide regional geologic information for management and planning officials. This map provides geologic information useful for range management, plant and animal studies, flood control, water resource investigations, and natural hazards associated with sand-dune mobility. The map provides connectivity to the regional geologic framework of the Grand Canyon area of northern Arizona.

The map area encompasses approximately 314 km2 (123 mi2) within Navajo and Apache Counties of northern Arizona and is bounded by lat 35°37'30" to 35°30' N., long 109°45' to 110° W. The quadrangles lie within the southern Colorado Plateau geologic province and within the northeastern portion of the Hopi Buttes (Tsézhin Bií). Large ephemeral drainages, Pueblo Colorado Wash and Steamboat Wash, originate north of the map area on the Defiance Plateau and Balakai Mesa respectively. Elevations range from 1,930 m (6,330 ft) at the top of Satan Butte to about 1,787 m (5,860 ft) at Pueblo Colorado Wash where it exits the southwest corner of the Greasewood quadrangle. The only settlement within the map area is Greasewood, Arizona, on the north side of Pueblo Colorado Wash. Navajo Highway 15 crosses both quadrangles and joins State Highway 264 northwest of Ganado. Unimproved dirt roads provide access to remote parts of the Navajo Reservation.

First posted January 23, 2013


  • Readme TXT (1 kB)
  • Metadata TXT (10 kB)
  • GIS database ZIP (, 5.3 MB, compressed; expands to sbgw_db, 14.5 MB) Zipped package includes the map base, style, geodatabase, and readme.
  • Shapefiles ZIP (, 5 MB, compressed; expands to sbgw_shape, 12.3 MB) Zipped package expands to include the map base, style, shapefiles derived from the geodatabase feature classes, and readme.
  • This report is available only on the Web.

For additional information:
Contact Information, Geology, Minerals, Energy, & Geophysics Science Center—Flagstaff
U.S. Geological Survey
2255 N. Gemini Drive
Flagstaff, AZ 86001-1600

Part of this report is presented in Portable Document Format (PDF); the latest version of Adobe Reader or similar software is required to view it. Download the latest version of Adobe Reader, free of charge.

Suggested citation:

Amoroso, L., Priest, S.S., and Hiza-Redsteer, M., 2013, Bedrock and surficial geologic map of the Satan Butte and Greasewood 7.5’ quadrangles, Navajo and Apache Counties, northern Arizona: U.S. Geological Survey Open-File Report 2013–1007, pamphlet 24 p., 1 sheet, scale 1:24,000. (Available at

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