Giant Springs State Park

Giant Springs was discovered by the Lewis and Clark Expedition in 1805 and is one of the largest freshwater springs in the country. The springs flow at a rate of 156 million gallons of water per day and the water stays at a temperature of 54 degrees. This is also the site of the Roe River, once listed in the Guinness Book of World Records as the world's shortest river. Come marvel at the park's remarkable features and view the variety of bird life. Take part in special events, picnic by the Missouri River, visit the fish hatchery and visitor center, walk along the Rivers Edge Trail, view the nearby Rainbow Falls overlook, or visit the neighboring Lewis and Clark Interpretive Center operated by the U.S. Forest Service. More than a quarter of a million people visit Giant Springs State Park each year.