Starting September 1, 2011 and running through September 4, 2012, North Dakota Parks and Recreation will be holding the "Play in Our Backyard Geocaching Contest." To enter visit a participating state park, find the cache and collect a contest sticker which then can be placed on a contest entry form for a chance to win prizes.
Contest caches can be found in Lewis & Clark, Lake Sakakawea, Fort Stevenson, Cross Ranch, Fort Abraham Lincoln, Lake Metigoshe, Fort Ransom, Beaver Lake, Turtle River, Grahams Island and Icelandic State Parks.