This May 2014 photo shows Chris Sorenson of Council Bluffs, Iowa, left, Bryce Lemke, 10, of Brandon, S.D., and Molly Lemke of Sioux Falls, S.D., right, crossing Split Rock Creek in Palisades State ... more 
This May 2014 photo shows Chris Sorenson of Council Bluffs, Iowa, left, Bryce Lemke, 10, of Brandon, S.D., and Molly Lemke of Sioux Falls, S.D., right, crossing Split Rock Creek in Palisades State Park in South Dakota. South Dakota's Division of Parks and Recreation says camping reservations are up this year in state parks after a brutal winter. (AP Photo/Joe Kafka) less 
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Associated Press | Photo By Joe Kafka
Tue, May 13, 2014 11:39 AM EDT