TY - RPRT TI - Dendrogeomorphic evidence and dating of Recent debris flows on Mount Shasta, Northern California AU - C.R. Hupp AU - W. R. Osterkamp AU - J.L. Thornton PY - 1987 DO - 10.3133/pp1396b UR - https://pubs.usgs.gov/publication/pp1396B ID - pp1396B ER -