

Categories
Non-Profit
Hours:
Office Hours: 9-5, M-F
60+ Miles of Trails, Boat Rentals, Islands, Campus Hours: Dawn-Dusk
Driving Directions:
GPS: 534 US Rte 3, Holderness NH 03245
Moon Island - Accessible by Boat
Bowman Island - Accessible by Boat
See website for other locations
About Us
At the turn of the century, Squam was quite different from the scene we enjoy today. The surrounding mountains were cleared by logging, sawdust several feet thick had settled in many of the coves, driftwood made navigation hazardous, and refuse, including tires, mattresses and dead animals, had been dumped in the lakes.
In 1904, the Squam Lakes Improvement Association was formed by a group of concerned landowners. In 1905, the association was legally incorporated as a non-profit conservation organization and renamed Squam Lakes Association (SLA). Initial efforts of the SLA were focused on eliminating pollution from the lakes, maintenance of the water level, boat safety and navigation. Through cooperative relationships with local and state governments and the dedication of four generations of people who loved Squam, the watershed has been uniquely conserved.
Video Media
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Events

Volunteer: Weed Watchers Training Day - Squam Lakes Association
- Join us to earn how to identify aquatic invasive species and report sightings as part of the Squam Lakes Weed Watchers program.
- Sunday Jul 13, 2025

Volunteer: Water Quality Day
- Join us for a boat ride to collect a water column sample and a data profile at two of our monitoring sites, Loon Reef and Moultonborough Bay.
- Sunday Jul 20, 2025

Volunteer: Trail Work Day on Old Bridle Path
- Come volunteer with the Squam Lakes Association to help clear water bars and prevent erosion on Old Bridle Path at West Rattlesnake.
- Sunday Jul 27, 2025