I wouldn't give up on your idea yet. Also, there are A LOT more snowmobilers out there than are on this forum. We are just a slice of the population. I think eventually proper trail signage will appear in more of our snowmobiling areas. It just takes some peoples time and a little money.
trail signs, markers, stakes, reflectors, rest stops, port a potties, maps, trail guides, etc have their place at family oriented riding areas like petersville. the top of turnagain? no way