Great Mountain Forest - From Sap to Syrup: Open Sugarhouse

On Sunday, March 22, from 10 a.m. to 2 p.m., Great Mountain Forest invites the community to experience the art and science of maple sugaring at its sugarhouse on 201 Windrow Road. Visitors can meet GMF foresters, learn how sap becomes syrup, and take home a bottle of the forest’s acclaimed “forest-to-table” maple syrup. 

For more than 80 years, Great Mountain Forest has combined maple sugaring with research and sustainable forestry. Its sugarbushes not only produce high-quality syrup but also support wildlife habitat for migratory birds. As Connecticut’s first bird-friendly maple syrup producer, GMF exemplifies how healthy forests can benefit both syrup enthusiasts and native wildlife.

Maintaining healthy sugarbush forests is more important now than ever as warming temperatures and shifting weather patterns challenge maple trees and the species that depend on them. This year, GMF is at the forefront of a new research initiative studying how sugarbush stands support early-season pollinators—an essential part of the regional ecosystem.

A unique feature of GMF’s sugaring program is its Sap House diary, a record kept for over 80 years that tracks sap production, syrup yields, weather patterns, migratory bird arrivals, and tree budding cycles. Executive Director Mike Zarfos calls it “an insightful window into the forest’s past and an invaluable resource for studying our changing climate, forest health, and syrup production.” It  offers crucial, long-term data on climate change impacts, forest health, and the intricate relationship between trees and wildlife.