TY  - RPRT
TI  - Assessing and Understanding Trail Degradation: Results from Big South Fork National River and Recreational Area
AU  - J. L. Marion
AU  - N. Olive
PY  - 2006
DO  - 10.3133/5200309
UR  - https://pubs.usgs.gov/publication/5200309
ID  - 5200309
ER  -