TY  - RPRT
TI  - Monitoring and assessing trail conditions at Acadia National Park
AU  - Jeffrey L. Marion
AU  - Jeremy Wimpey
AU  - Logan Park
PY  - 2009
DO  - 10.2307/j.ctv1xx9bkn.23
UR  - https://pubs.usgs.gov/publication/70158983
ID  - 70158983
ER  -