Yeah I know personally when we mark the trail for our club we remove any large rocks or other obstructions that are in between the markers on the trail in the fields or other places. But trust me when I say there are many that are left just outside the sticks. And there are more than just large rocks, I have seen broken fence posts, barb wire, and large stumps laying in the trail that we have removed but anything outside the trail gets left at least by our club. It appears our area in Northern Walworth county this year is doing pretty good for people staying between the sticks for the most part. There are a couple fields where you can see that was deviated from I am guessing mainly due to earlier in the year when the chisel plowed fields were bad and people are now continuing to follow these old tracks. But I will be one to warn against that for sure. After pulling multiple large rocks in one day and pounding in a couple hundred posts I am not about to go and remove a rock that is 2ft in diameter that is technically a couple feet off the trail. If you go off the trail then that is your own fault and you never know when that large hurtful rock will be waiting for you underneath that fresh snow off the trail. I will also mention while we are talking about the trail in general that every spring when pulling the signs out we fill completely a large garbage bag or two of broken sled parts: windshields, hand guards, belts, bogey wheels, and beer cans. Pick up after yourself on the trail, it is not your property! I get a bogey wheel or two or maybe a broken carbide or studs left behind inadvertently. But beer cans and shredded belts can easily be taken with you in the seat, bag or other. Trust me when a farmer comes across it and it causes damage to their equipment we hear about it. Hence why we pick it up before they get out there in the spring! But we do not catch everything I know for sure! I know I personally will stop when riding to pick up any trash I see laying on the trail and shove it in my bag on the back of my sled even though it isn't mine as long as I have room. So moral of the story stay between the stick and pickup after yourself on other peoples property and we shouldn't have any issues.
RS