Showing 1 - 6 results of 6 for search '"Umatilla County"', query time: 1.00s Refine Results
  1. 1
    A History of Transportation in Nineteenth Century Umatilla County, Oregon
    by Miller, Gary Kenneth
    Published 1996
    Subjects: “...Transportation -- Oregon -- Umatilla County -- History...”
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  2. 2
    The use of Hydrochemistry to Identify Potential Processes Operating in the Saddle Mountains Basalt Aquifer and the use of the Nitrate-nitrogen Isotope to Distinguish between Potential Sources of Nitrate to the Shallow Alluvial Aquifer in the Lower Umatilla Basin, Oregon
    by Truini, Margot
    Published 1996
    Subjects: “...Aquifers -- Oregon -- Umatilla County...”
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  3. 3
    An evaluation of well-water nitrate exposure and related health risks in the Lower Umatilla Basin of Oregon
    by Mitchell, Thomas J.
    Published 2013
    Subjects: “...Drinking water -- Contamination -- Oregon -- Umatilla County...”
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  4. 4
    The effects of defoliation on yellow starthistle (Centaurea solstitialis L.) reproductive capacity
    by Schumacher, Stacy
    Published 2012
    “... produced. The study was conducted in Umatilla County, Oregon using a randomized block design with 4...”
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  5. 5
    The Conservation Reserve Program : its impact on the economies of rural communities
    by Nofziger, Sharon Dianne
    Published 2012
    “... in Gilliam, Morrow and Umatilla Counties in Oregon. These counties are representative of many rural counties...”
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  6. 6
    The geology and geochemistry of the North Fork stock, northeastern Oregon
    by Matty, David Joseph
    Published 1979
    “... in Grant and Umatilla counties. The stock intrudes metasediments, metavolcanics, and metagabbros associated...”
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