@misc{indiciae5aa98fe44387, title = {Deterring off-trail hiking in protected natural areas: Evaluating options with surveys and unobtrusive observation: Final report}, author = {K.A. Hockett and Y.F. Clark and J.L. Leung and Marion and L. Park}, year = {2010}, url = {https://pubs.usgs.gov/publication/70004551}, note = {Source identifier: 70004551} }