Devil's Millhopper Geological State Park

Devil's Millhopper Geological State Park is a unique natural attraction located in Gainesville, Florida. The park's main feature is a large sinkhole, 120 feet deep and 500 feet across, that formed when limestone bedrock collapsed. This geological formation has been drawing visitors since the 1880s and was designated a National Natural Landmark in 1974.

The sinkhole creates a miniature rainforest ecosystem within its depths. Small streams trickle down the steep slopes, disappearing through crevices in the limestone walls. The cool, moist environment at the bottom of the sinkhole supports lush vegetation that thrives even during dry summers, including ferns, mosses, and other plants typically found in more northern climates.

A wooden boardwalk with 132 steps allows visitors to descend into the sinkhole and observe its unique ecology up close. The exposed rock layers in the sinkhole's walls provide a visible record of Florida's geological history. Researchers have found fossil remains of extinct land animals and marine shells within the sinkhole, offering insights into the area's prehistoric past.

In addition to the sinkhole, the park features a half-mile nature trail that circles the top of the formation. This trail provides opportunities for visitors to explore the surrounding upland forest ecosystem. The park also includes a small visitor center with interpretive exhibits about the area's geology and natural history.

Devil's Millhopper Geological State Park is open from 8 a.m. until sundown, 365 days a year. However, the visitor center is closed on Mondays and Tuesdays. The park offers guided tours on Saturdays at 10:00 AM, providing visitors with in-depth information about the sinkhole's formation and ecology.