It is notable for the variety of birds that are attracted to Ralstin Island (not open to the public) and also for the selenite crystals that can be collected along the shoreline.

A study made in 1931 for the United States Army Corps of Engineers proposed building a flood control dam in the Great Salt Plains area.

The island is considered one of the most important colonial bird nesting habitats, and is the largest breeding site in the state for the white-faced ibis.

[3][4] Scientists believe that salt was deposited during repeated water-level rises of a shallow sea millions of years ago.

According to John Stahl, northwest fisheries supervisor for the Oklahoma Department of Wildlife Conservation, the lake has grown more shallow since its creation because of silting and agricultural runoff.

Recreational opportunities at Great Salt Plains State Park include boating, camping, picnicking, swimming, hiking, mountain biking and exploring.