I am the President of the local ATV/snowmobile club and I can positively tell you that it is illegal to run your Jeep on the CMP power line. There are exceptions to that rule for:
1. Clubs that have approved plans and trails
2. Farmers who have written permission to graze their live stock and travel
3. Other activities approved in writing by CMP
Additionally, when the ATV/snowmobile trails are built and maintained by the clubs using State money (almost all are) those are also restricted by law.
It's not that people hate 4X4's. In fact, I have a mudder but I take it to approved trails. It is just the fact that people destroy trails, bridges, floating trails with their rigs. I have helped build a bridge on one Saturday and returned the next Saturday to find it destroyed!
Now we post cameras and turn the pictures over to the Warden Service and State Police. If you really want to be a good neighbor and help the 4X4 community, use approved ares.