TY - RPRT TI - Map showing landslides and relative slope stability of Quaternary deposits of the lower Skagit and Baker Valleys, North Cascades, Washington AU - Paul L. Heller PY - 1979 DO - 10.3133/ofr79963 UR - https://pubs.usgs.gov/publication/ofr79963 ID - ofr79963 ER -