98-115: Digital Geologic Map of the Spokane 1:100,000 Quadrangle, Washington and Idaho, A Digital Database for the 1990 N.L. Joseph Map

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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

Thumbnail of and link to report PDF (434 kB)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

  • 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 94025-3591
http://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.

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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