Most state forests in New York have free camping. It's primitive camping with just a fire ring provided, usually no bathrooms. You can only stay a couple days and need a permit for large groups. Then there are some that just allow camping anywhere as long as you're 150 feet from the road or river. Off-road trails may have some free hiker-biker campgrounds. The Erie Canal Trail lets you camp at the locks. I think you're supposed to call ahead though.
Most state forests in New York have free camping. It's primitive camping with just a fire ring provided, usually no bathrooms. You can only stay a couple days and need a permit for large groups. Then there are some that just allow camping anywhere as long as you're 150 feet from the road or river. Off-road trails may have some free hiker-biker campgrounds. The Erie Canal Trail lets you camp at the locks. I think you're supposed to call ahead though.