Geologic map of the East Canyon Ridge quadrangle, southern Cascade Range, Washington [microform] / U.S. Department of the Interior, U.S. Geological Survey ; by Donald A. Swanson
Scale 1:24,000 (W 121⁰45ʹ00ʺ--W 121⁰37ʹ30ʺ/N 46⁰22ʹ30ʺ--N 46⁰15ʹ00ʺ).
Note
Relief shown by contours and spot heights. Distributed to depository libraries in microfiche. Shipping list no.: 95-0621-M. Pamphlet includes bibliographical references and index map.
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