I have the same situation. The pipeline that crosses my property is relatively remote and must be accessed by foot/ATV/snowmobile starting about 2 miles away. That said, it's described as an easement to the U S Government (who installed the pipeline), I still retain the privilege of paying taxes. While this pipeline is very popular with hunters and snowmobilers, for the most part, the users have been responsible users. There is always the exception of course; hunters who ignore the signage stating to ask permission to hunt beyond a certain point and ATVer's who tear up the land when wet and muddy. All in all, I think the CO made the right call and is certainly being a responsible cacher.