Springport is a small, mostly historic, unincorporated community located on US 23 Lake Huron at the southern end of Harrisville State Park, approximately two miles from downtown Harrisville at . It was first settled by the family of S.M. Holden, a native of New York. He is credited with being the first permanent white settler in Alcona County. In September 1846, while fishing, his ship and two-man crew was driven ashore. Near that place, Holden found a tract with good springs and pine trees. He soon moved his family there and established a prosperous fishing enterprise. Joseph Van Buskirk built a store and sawmill in about 1865. The settlement was at first called "Sunflower Hill" and also as "South Harrisville". It was renamed for the springs gushing from the cliffs there.