We have experienced intentional destruction of our clean-up and restoration projects Katrina. The restoration/cleanup held for National Public Lands Day at Arrastra Falls with the BLM and Student Conservation Association was intentionally destroyed by dirt bikers on an angry rampage within a week of completion. There was even a beautiful picture in the V V daily Press about it.
There are some very radical OHV activists who monitor this site.
Here is a link to the FOJF site...not much but we are a little volunteer group with no deep pocket corperate sponsors
http://groups.yahoo.com/group/FOJF/
We do public educational outreach and distribute information about legal OHV oppertunities in San Bernardino County every Thursday at the Victor Valley College Farmer's Market.