Silver Lake Sand Dunes.

Here are a few pics of what you'll se at Silver Lake. That place is wild, I suggest that anyone with an ORV should make a trip there someday. Requirements: Dune flag that spans at least 12 feet above the ground, ORV sticker, and a state park sticker for your vehicle AS WELL AS your ORV. It will cost a few bucks, but it's definitely worth it.