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Filtering by: Keyword Geology -- Oregon -- Willamette River Valley Remove constraint Keyword: Geology -- Oregon -- Willamette River Valley Decade 1910-1919 Remove constraint Decade: 1910-1919

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  • Road materials in the Willamette Valley

    Creator:
    Parks, Henry M.
    Abstract:
    Published January 1911. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
    Resource Type:
    Technical Report
    Full Text:
    Mining Engineering Oregon Agricultural College Road Materials IN THE Willamette Valley BY HENRY M