TY - RPRT TI - Photomosaic base map of the Willamette River basin, Oregon: A tool for land and water-resource planning AU - S. D. Vickers AU - W. M. Brown AU - Antonio Jurado AU - D. A. Rickert PY - 1975 DO - 10.3133/i921a UR - https://pubs.usgs.gov/publication/i921A ID - i921A ER -