I am currently working on a trail map that is primarily based on USFS land however there is a some adjacent private property with trails on it. The trails on the private property are open to the public and there are posted rules and regulations visitors must follow. I was considering including these trails on my trail map but wanted to know if anyone is aware of any laws or other reasons I could not include these private trails on my map. The trails connect to the trails on the adjacent public lands so it seems natural to include them however I don't want the private land owners to take any action against me and/or the map.
Also, a related question I have been meaning to to ask. We sell and distribute some other trail guides and I was wondering if companies doing similar activities have insurance to protect themselves against being sued for say - someone getting lost while using a trail guide we produced and sold.