Petit Jean State Park-Lake Bailey-Roosevelt Lake Historic District, historic district in Arkansas, United States

Petit Jean State Park-Lake Bailey-Roosevelt Lake Historic District is a Civilian Conservation Corps landscape in Petit Jean State Park, Conway County, Arkansas. It holds Lake Bailey and Roosevelt Lake, both formed by CCC-built dams, a waterfall between them, a boathouse, a shelter, a bathhouse, and the Cedar Creek Bridge at Roosevelt Lake's outlet. The facilities were built about 1935.

The district was built around 1935 by workers from the Civilian Conservation Corps, a program providing jobs during the Great Depression. In 1992, it was added to the National Register of Historic Places, recognizing its importance for history and architecture in the United States.

The name Petit Jean comes from a legend about a young French woman who disguised herself as a boy to follow her fiancé to the New World; she fell ill and died on the mountain, which was then named for her. The Civilian Conservation Corps workers who built the district in the 1930s left a visible mark: concrete stumps set in Roosevelt Lake to resemble weathered wood, a detail a visitor can still spot along the shore.

The district is located within a state park with walking trails of varying difficulty that are clearly marked and maintained. Visitors can walk across the bridge, observe the waterfalls, and explore the historic buildings and structures without needing special equipment or preparation.

Roosevelt Lake contains concrete stumps designed to look like wooden posts emerging from the water, a clever artistic feature left by Civilian Conservation Corps workers. This unexpected sculptural element gives the shoreline a playful and memorable character.