The 37'X 37' frame mill of 2.5 story stature on a limestone foundation ws built in 1812 by Andrew & Robert Moody. The new mill promptly caught fire and burned, with a replacement mill not coming until 1821.

The second Moody Mill was sold to Frank Grinnell in 1864. He named it Spring Lea Mill because of the many springs prevalent in the meadow north of the mill. The Grinnell family operated the mill as a grist mill and also ground limestone from quarries nearby until 1937, when the mill closed.

The flood of 1913 damaged the undershot wheel and also severely damaged the upstream log and stone dam of 1812. The wheel was replaced with a Leffel turbine and the dam was reconstructed with stone and concrete.

The turbine that was pulled out of the pit under the inlet to the mill during reconstruction. The mill was bought by Antioch College in 1948 and became part of the Glen Helen Ecology Institute section ofAntioh College's campus. Part of the mill was rented as a residence in the 1950's and 1960's. Since then it has been mostly vacant and subject to deterioration and vandalism.

The Miami Township Fire & Rescue Unit issued an ultimatum in June '03 that the college had 90 days to come up with a plan for restoration or the structures would be destroyed, as it had been declared unsafe and a hazard to pulic safety. In Jan.'04, after many extensions, the Township trustees agreed to purchase the historic structure, and along with local resident Jim Hammond, devise a plan for restoration. One idea was to develop the mill, which the township now owned while Antioh College still owned the 4 acres of land in and around the mill, into a cultural heritage resource center. The renovations seen in the accompanying photos are intended to facilitate the structure into a Bed & Breakfast as of mid to late 2006. At least it will be preserved with the outlook of a brand new mill structure, only not operational.