In the deep south of Idaho is Castle Rocks State Park, a wonderful place to visit when you book an RV in Cassia County. This park is home to a rich natural history that is easily traceable back over 2.5 million years, and this natural landscape provides a backdrop for most activities in the park. Castle Rocks State Park draws rock climbers from all over the world, and its seemingly endless rock formations and small mountains are enough to keep anyone busy for weeks on end.
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