TY - RPRT TI - Rock fall simulation at Timpanogos Cave National Monument, American Fork Canyon, Utah, USA AU - Edwin L. Harp AU - Richard L. Dart AU - Paola Reichenbach PY - 2011 DO - 10.1007/s10346-010-0251-7 UR - https://pubs.usgs.gov/publication/70038474 ID - 70038474 ER -