Investigation of silica deposits near the Skagit River, Skagit County, Wash.

Author: Popoff, Constantine C.
Year: 1949
Document Type: BMRA
Issuing Agency: U.S. Dept. of the Interior, Bureau of Mines,
SUDOC: I 28.23:4472
Series: Report of investigations / United States Department of the Interior, Bureau of Mines ;
Report Number: 4472
Subject: Silica--Washington (State)--Skagit Couunty
Link: https://hdl.handle.net/2027/mdp.39015078495531

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