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Get the latest information on Upcoming Events

a little about

Great Hollow

Established in 2016, the Great Hollow Nature Preserve & Ecological Research Center is a 501(c) 3 non-profit organization that is dedicated to biodiversity conservation, applied ecological research, experiential environmental education, and passive outdoor recreation. Our staff and collaborators conduct integrative, conservation-driven studies of wildlife and plants within and beyond our preserve. Great Hollow also runs numerous education programs for both children and adults throughout the year, including school programs and a nature-based summer day camp. Our 825-acre preserve and five miles of hiking trails are open to the public year-round for the exploration and enjoyment of nature.

Upcoming Events

Wed 20

Kids’ Nature Club

February 9 @ 1:00 pm - March 23 @ 4:00 pm
Great Hollow Nature Preserve
225 CT-37
New Fairfield 06812
Thu 21

Green Drinks!

March 21 @ 5:00 pm - 7:00 pm
Housatonic River Brewing
30 Kent Road
New Milford 06776
Sun 24

Help protect the preserve

Individual Membership

Family Membership

Sponsor Membership

Quaker Brook Club Membership

Merritt Club Membership

Over $5000 / yr

Learn More
Become a Member

Come hike our public trails or join us for an event. Have a question, use the form below to contact us.