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Open-File Report 98-115

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### Prepared in cooperation with the Washington Division of Geology and Earth Resources

# Digital Geologic Map of the Spokane 1:100,000 Quadrangle, Washington and Idaho, A Digital Database for the 1990 N.L. Joseph Map

#### By Bruce R. Johnson and Pamela D. Derkey

| Introduction
Geologic data from the geologic map of the Spokane 1:100,000-scale quadranglecompiled by Joseph (1990) were entered into a geographic information system (GIS) aspart of a larger effort to create regional digital geology for the Pacific Northwest. Themap area is located in eastern Washington and extends across the state border intowestern Idaho (Fig. 1). This open-file report describes the methods used to convert thegeologic map data into a digital format, documents the file structures, and explains how todownload the digital files from the U.S. Geological Survey public access World Wide Website on the Internet. | First posted March 27, 1998
- **Readme** TXT (2 kB) 
- **Report** PDF (434 kB) 
-  **Spokane quad** TAR.Z (631 kB)    Download the Spokane quadrangle datasets in compressed tar  Arc/Info Export format 
-  **Text and aml files** TAR.Z (32B)    Download Text and AML files needed to re-create the paper maps in a GIS. This file is in UNIX compressed tar format and includes 8 ASCII files (Arc/Info plot AMLs, key files, and explanatory text) 
-  **Map** HP.Z (636 kB)  Download Map prepared from the digital dataset, in compressed (spok100k.hp.Z) HPGL2 format. The map scale is 1:100,000. Page size is approximately 39 by 29 inches. The map is oriented with the long axis in the x-direction for plotting. 

**For additional information, contact:**          Geology, Minerals, Energy, and Geophysics Science CenterU.S. Geological Survey345 Middlefield Road, MS 901Menlo Park, CA 94025-3591http://geomaps.wr.usgs.gov/gmeg/

Part or all of this report is presented in Portable Document Format (PDF). For best results viewing and printing PDF documents, it is recommended that you download the documents to your computer and open them with Adobe Reader. PDF documents opened from your browser may not display or print as intended. Download the latest version of Adobe Reader, free of charge. |
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### Suggested citation:

Johnson, B. R., Derkey, P. D., 1998, Digital Geologic Map of the Spokane 1:100,000 Quadrangle, Washington and Idaho, A Digital Database for the 1990 N.L. Joseph Map: U. S. Geological Survey Open-File Report 98-115, 13 pp., *https://pubs.usgs.gov/of/1998/0115/*.

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U.S. Department of the Interior |            U.S. Geological Survey           	URL: *http://pubsdata.usgs.gov/pubs/of/1998/0115/index.html*            Page Contact Information: GS Pubs Web Contact           	Page Last Modified: Wednesday, 07-Dec-2016 16:50:25 EST