Geology

Geology

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  • (-) Oregon Department of Fish and Wildlife (27)
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  1. Rocks of the Tillamook Bay Drainage Basin, the Coast Range of Oregon - Sources of Sediment Accumulation in the Bay

    Abstract -- This short report reviews and summarizes the nature of the geologic rock formations within the Tillamook Bay drainage. The eroded sediments of these rocks, with their particular mineralogies and...

  2. Mary's River Watershed Suspended Sediment Characterization Project

    Abstract -- This stream turbidity and suspended mineralogy study was made during two winter seasons - 1998/99 and 1999/2000. Turbidity monitoring was performed in 30 locations within the 24 sub-watersheds of...

  3. Malheur Basin Watershed Assessment

    Abstract -- The watershed plan addresses many of the physical, biological, and geological aspects of

  4. AI - Reference Site Selection and Survey Results 2000

    Abstract -- The Oregon Department of Fish and Wildlife (ODFW) Aquatic Inventories Project conducts stream habitat surveys as part of the Oregon Plan for Salmon and Watersheds. The goal of these surveys is to...

  5. Lower Middle Fork Willamette River Watershed Assessment

    Abstract -- This watershed assessment includes the following topics: land forms and geology, land ownership and uses, hydrology, riparian habitat conditions, aquatic habitat and fish populations, wetland...

  6. Lateral Channel Migration, Downcutting and Restoration Potential of the North Fork Siuslaw River

    Abstract -- The report contains information on the study's methodology, geologic setting of the North Fork Siuslaw River, recent history of the North Fork Siuslaw River, current condition, channel information,...

  7. Surface-Ground Water Interactions Along Oregon's Lower Walla Walla River 2000 - 2001

    Abstract -- This report describes surface - groundwater interactions in the Walla Walla River between the WA-OR border and the town of Milton-Freewater. It includes detailed sections on seepage, vertical and...

  8. Kilchis Watershed Analysis 1998

    Abstract -- This exhaustive report analyzes the Kilchis River watershed, one of five river systems that enter Tillamook Bay, and includes these sections: watershed characteristics, land use, hydrology, stream...

  9. White Sturgeon Mitigation and Restoration in the Columbia and Snake Rivers Upstream from Bonneville Dam

    Abstract -- We report on our progress from April 2005 through March 2006 on determining the effects of mitigative measures on productivity of white sturgeon populations in the Columbia River downstream from...

  10. Crooked-Rattlesnake, Jordan and Middle Owyhee Subbasins Watershed Assessment

    Abstract -- The 2005 Crooked-Rattlesnake, Jordan and Middle Owyhee Subbasins Watershed Assessment was prepared by the Owyhee Watershed council. This document discuesses history of each subbasin its channel...

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