TY  - RPRT
TI  - Rock-fall hazard assessment of the Aspen Forest Trail, Navajo National Monument, Arizona
AU  - Gerald F. Wieczorek
AU  - Edwin L. Harp
PY  - 2000
DO  - 10.3133/ofr00305
UR  - https://pubs.usgs.gov/publication/ofr00305
ID  - ofr00305
ER  -