These mounds and earthen embankment are the remains of a large ceremonial and governmental complex inhabited from A.D. 600 to 950. Today this center is managed by the Arkansas State Parks and the Arkansas Archeological Survey. The museum collects, preserves and exhibits examples of Arkansas' changing oil technology and brine industry, and focuses on the 1920s oil boom in south Arkansas. Working outdoor exhibits include an oil well, pumping rig and three derricks. Temporary and traveling exhibits are displayed inside the museum and two video presentations depict the discovery of oil and brine in Arkansas.
Admission is free.
The museum is on Arkansas Hwy 7 one mile south of Smackover. AR 71902 Rock collecting is not permitted in the park, of course, but you can see some interesting sites when you hike the mountain trails or drive to the overlooks. Legend has it that a fire-breathing dragon named Mogmothon heats the thermal waters. If you'd like to see exhibits featuring the geology of the springs and the local area, stop by the park headquarters and visitor center on Bath House Row. Most of the hot springs are capped to prevent contamination, but two of the springs are left open.