TY - RPRT TI - Triangulation and primary traverse, 1916-1918. Triangulation and primary traverse in Oregon and Washington, 1916-1919 AU - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey PY - 1923 DO - 10.3133/b709k UR - https://pubs.usgs.gov/publication/b709K ID - b709K ER -