Geologic map of the Vancouver and Orchards quadrangles and parts of the Portland and Mount Tabor quadrangles, Clark County, Washington, and Multnomah County, Oregon / by Jim E. O'Connor [and three others].
- Physical Description: 1 online resource (1 map) : color.
- Publisher: Reston, Va. : U.S. Department of the Interior, U.S. Geological Survey, 2016.
|General Note:|| Relief shown by contours and spot heights.
Title from title screen (viewed July 20, 2016).
Includes text, index map and table.
|Bibliography, etc. Note:|| Includes bibliographical references.
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