Lake Massapoag is a 353-acre, natural, stream and spring-fed lake, and one of the Town of Sharon's most valuable natural resources. The name Massapoag is Algonquin, meaning "large water". The lake is the headwaters of the Massapoag Brook, which flows from the north end of the lake at the flume house, through Hammer Shop Pond, Mann's Pond, then Trowel Shop Pond and eventually into the Neponset River.
The Lake Massapoag website is sponsored by the Lake Massapoag Advisory Committee (LMAC). On these pages we will direct you to up-to-date information on the status of the lake, including beach closings due to E. coli or cyanobacteria, and the available recreational facilities and pertinent rules, at the appropriate town website.
We also provide easy-to-find access to current and historical data on lake water quality and levels, and lake management data, as well as threats to the lake's health, and ways that lakefront property owners, residents, and businesses throughout Sharon, can help protect our most valuable natural resource.
Lake Massapoag is a Great Pond, by state definition, and thus overseen by the Select Board. It is managed under the orders of conditions set by the Town of Sharon Conservation Commission. The LMAC provides recommendations to the Conservation Commission on matters pertaining to lake management.