Trail Erosion Rates from Six Years of Very Low Altitude Photogrammetry at Hollister Hills State Off-highway Vehicle Park

Douglas P Smith1, Mikaela Bogdan1, Joseph Klein1, Nicolas Somilleda2 and Scott Soares2, (1)California State University Monterey Bay, Applied Environmental Science, Seaside, CA, United States, (2)California State Parks, Off-Highway Motor Vehicle Recreation, Hollister, CA, United States