Camping reservations at S.D. state parks open Feb. 18
(Feb. 15, 2012) -- Reservations for camping in most state parks can be made within 90 days of arrival. The first day to make reservations is Feb. 18. Camping reservations are available for dates between May 18 and Sept. 3 in most parks. A limited number of parks also accept autumn reservations through Oct. 8.