About LMMD

The Lake Mason Management District (LMMD) formed in 2002 with a mission to protect and improve the quality of Lake Mason for everyone. A lake district is a specialized unit of government designed to manage a lake or group of lakes.

LMMD is managed by a board of seven commissioners. LMMD and the Lake Mason Improvement Committee work to oversee lake improvement projects, conduct water sampling and documentation, help with invasive species management, coordinate fish stocking, work with the Wisconsin Department of Natural Resources on special projects, set guidance for lake residents, welcome new lake residents and organize fun annual events like boat parades and picnics.

Lake Mason History

The lake was first created in 1852 when a dam was completed with two flumes, one supporting a sawmill. The lake was named after the carpenter who built the dam. The dam was rebuilt in 1891, but failed in December 1892 due to heavy ice. The dam was again then replaced. There was a dam break again in March 1993, with the new dam being completed later that year.

The primary water source for the lake is spring-fed Big Spring Creek, which flows southeasterly into the lake. Big Spring Creek has an area designated as a Class I trout stream above the Big Spring Dam, but is designated Warm Water Forage Fishery below the dam. Also flowing into Lake Mason is an unnamed tributary to Big Spring Creek and another unnamed tributary flowing directly into the lake.

There are a few small businesses in the watershed, mostly located in the Briggsville area along Highway 23. According to the Wisconsin State Historical Society, there are several archeological sites in the watershed consisting of burials, effigy and other mounds, campsites and a cemetery.