Sesquicentennial State Park, State park in Columbia, United States.

Sesquicentennial State Park covers 1,419 acres in the Sandhills region, about 12 miles from downtown Columbia. Its 30-acre lake is ringed by the two-mile ADA-accessible Sandhills hiking trail, while the Sesqui Mountain Bike Trail covers 6.5 miles of sandy, varied terrain. The park holds 84 campsites, three picnic shelters, four picnic pads, a splash pad and a dog park.

Sesquicentennial State Park grew out of Columbia's 1936 sesquicentennial celebration, when the commission used surplus funds to buy 1,445 acres in 1937. The land passed to the Commission of Forestry, and Civilian Conservation Corps Company #4469 built the stone entrance and many park buildings.

The park's nickname, "Sesqui," comes from the 1936 sesquicentennial of Columbia, and the name has stuck in local speech. The Civilian Conservation Corps Company #4469 built the stone entrance and many park buildings, structures a visitor can still see. The 30-acre lake and the two-mile Sandhills loop around it are the setting for most of the park's organized activities.

The site offers 84 campsites, three picnic shelters, boat rentals on the lake, and trails ranging from easy to challenging. Bring water, sun protection, and sturdy footwear, especially for longer hikes or mountain biking.

The park's name comes from Columbia's 1936 sesquicentennial, or 150th anniversary, celebration; surplus funds from that event bought the land in 1937. The Civilian Conservation Corps Company #4469 then built the park's buildings and its stone entrance, which visitors still pass through.