Ground water in the Lummi Indian Reservation, Whatcom County, Washington
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Open-File Report↗
Geology topics
Publications and source records attributed to Robert L. Washburn.
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This report covers an irregularly shaped area of about 830 square miles in the west and central parts of Lewis County, including most of its populated part. The area mapped spans the county from north to south within the Puget Trough and includes valleys extending eastward and westward up the major streams. The investigation was concentrated chiefly in the basins of the Cowlitz, Chehalis, and Newaukum Rivers.