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

Sat 24

Outdoor Yoga, Every Sunday All Summer Long

June 2 @ 9:30 am - August 25 @ 10:30 am
Great Hollow Nature Preserve
225 CT-37
New Fairfield 06812
Sep 20

Jazz Night on the Patio

September 20 @ 7:30 pm - 9:30 pm
Great Hollow Nature Preserve
225 CT-37
New Fairfield 06812
Sep 28

Herrick Trail Hike

September 28 @ 10:00 am - 12:00 pm
Herrick Trail Preserve
Sherman 06784

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.