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  • Winter Salt Awareness Week 2026 is January 26-30

    Winter Salt Awareness Week 2026 is January 26-30, free and online, register here for live stream programs all week: https://wintersaltweek.org/. GMCG is a proud partner in this collaboration of governmental and nonprofit organizations across the U.S. and Canada with a goal is to raise awareness of the ways winter road salt damages infrastructure and threatens the

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  • Online Auction CLOSED: Thank you for your support!

    Thank you to all the bidders, winners, and supporting donors who helped make GMCG’s Online Auction for Watershed Protection a success! We raised over $10,000 to support our programs in research, education, advocacy, and land conservation! THANK YOU! If you are a winning bidder, to verify you have won, and make an online payment for

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  • New GMCG fall newsletter out now!

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  • 2025 Watershed Celebration recap

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  • 2025 Annual Watershed Celebration set for July 29

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  • AmeriCorps Bridge Campaign

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  • 2025 Polar Plunge a splashing success!

    We did it. We plunged in the icy Ossipee River to celebrate the elusive arrival of spring. We recovered in the toasty warmth of the wood fired sauna. We enjoyed a good hot meal. We visited with friends. And we surpassed our fundraising goal with over $20,000 raised this year. Thank you for being a

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  • Polar Plunge donations MATCHED 100% – Wildest fundraising event on April 11th in Effingham

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  • The O’l Hens’ legacy lives on

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  • Winter Salt Awareness Week features free webinars January 27-31

    Winter Salt Awareness Week 2025 is the last week in January (January 27-31) and aims to raise awareness around salt pollution and reduction solutions. Winter Salt Awareness Week is a collaboration of governmental and non-governmental organizations across the United States and Canada. Here in New Hampshire the Green Mountain Conservation Group (GMCG) and NH Department

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Green Mountain Conservation Group protects the lakes, rivers and groundwater of the greater Ossipee Watershed, its aquifer, land, and associated natural resources to ensure prosperous communities and a healthy ecosystem for all. 

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P.O. Box 95
Effingham, NH 03882

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236 Huntress Bridge Rd.
Effingham, NH 03882

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The mission of GMCG is to promote an awareness of and appreciation for clean water and the wise use of shared natural resources across the Ossipee Watershed and advocate strategies to protect them.

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Contact Us
P.O. Box 95
Effingham, NH 03882
603.539.1859
info@gmcg.org

Visit Us
236 Huntress Bridge Rd.
Effingham, NH 03882

©2022 Green Mountain Conservation Group • Made for the love of the planet by TCB Agency

©2022 Green Mountain Conservation Group • Made for the love of the planet by TCB Agency

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