September at Mashomack

Trails are open 7 days a week, from dawn to dusk


The Visitor Center Exhibits are open
Wednesday- Sunday, from 10 AM – 3 PM

Please Note: Mashomack Trails will be closed November 4th and 5th as we welcome Hunters of Color to the preserve.


Visitor Center Bathrooms open daily, 8 AM – 6 PM
                                                                                                       © Rebecca Kusa/TNC
Photo 1) Environmental Explorers discovering earth worms. 2) Families getting ready for kayaking in Bass Creek. 3) Volunteer Jack Larsen and Land Steward Dan Ritzler constructing benches for rest stops along the trails.

Looking Back on a Full Summer at Mashomack

From June through August, the preserve was humming with the sounds of summer, from cicadas in the trees, to children on the trails and adults on the water. To start off the summer, Mashomack welcomed a dozen enthusiastic New York State Master Teachers to learn about forest, marsh and meadow conservation, share lesson plans and bring new ideas back to their classrooms and beyond. At the same time, schools joined us for the last field trips of the year while visiting Quinipet camp. July and August brought families to the preserve for a variety of programs, including paddles, night walks, Environmental Explorers and our teen Field Ecology and DNA program—just to name a few! We also welcomed some new faces from the EAC network (Empower, Assist, Care) for lunch under our new Teaching Pavilion and a guided hike along our Red Trail.
Even though summer is winding down, our team is gearing up for a full suite of fall programming! Take a look below for a sample of autumn events to come.

Fall Programming Preview

Mashomack Coastal Cleanup
Date: Saturday, September 16th, 9:00 – 11:00 AM
Come out for a day of volunteering as we work to clean up our coastline! Together, we can help keep our environment free of litter and protect marine life. All are welcome.  
Autumnal Equinox Shellfish Paddle
Date: Sunday, September 24th, 3:00 – 4:30 PM
What could be better than celebrating the arrival of autumn by paddling along a quiet coast? We will venture to Log Cabin Creek and learn about the importance of shellfish in our coastal waters from Kate Rossi-Snook of Cornell Cooperative Extension. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                                                                                                       © Rebecca Kusa/TNC

Fall Seedlings


  • Falling for Autumn: Thursday, September 21st, 3:00 – 4:30 PM
  • Creepy and Crawly: Friday, October 13th, 3:00 – 4:30 PM
  • Nocturnal Nature: Thursday, November 9th, 3:00 – 4:30 PM
  • Winter Solstice: Thursday, December 21st, 3:00 – 4:30 PM

Join us at Mashomack as we explore the natural world around us and learn about different animals and habitats at the preserve. Activities will include crafts, snacks and/or exploring our trails. Ages 4-8. Advanced Registration is Required.
Mashomack’s Halloween Trail
Date: Saturday, October 21st, 5:00 – 7:00 PM
One of our most anticipated events at Mashomack! Come walk in the woods at night along the self-guided Halloween trail. Meet some people dressed as interesting & entertaining nature creatures and have some not-too-scary fun. Get a jump on your Halloween costume and join us on the trails the week before the big day!
Autumn Foliage Truck Tour
Date: Saturday, October 28th, 10:00 – 11:30 AM
Join our Mashomack team and take a ride through our forests as we appreciate the colors of fall at the preserve. We’ll take in the sights, sounds and smells of autumn on the east end of Long Island.
Information for these programs and more will be available at nature.org/events as we get closer to the program dates. Advanced registration is required for all programs. For questions or to reserve your spot in any of our events, please email MashomackPreserve@tnc.org


Volunteer with Us!
As temperatures cool, we have lots of opportunities for volunteers to help out on the trails, at the Visitor Center, or in the office! To learn more, please email us at MashomackPreserve@tnc.rog.


© Rebecca Kusa/TNC

September Book in the Woods

It Starts with a Seed by Jennie Webber
A small seed transforms into a seedling, then sapling, then into a young tree. Come journey along as the tree grows larger, harboring animals in its roots and branches. Beautiful illustrations! Take a self-guided, half-mile walk and read as you go.


Amid Industrial Development Threats to Lands, Major Opportunities to Support Indigenous Stewardship

A new global study maps out conversion risks to Indigenous Peoples’ lands and emphasizes

the importance of rights-based solutions.

Learn More Here


                                                                                                                                © TNC
     Click on trail map to download.


The Nature Conservancy works across New York, the United States and in 79 countries and territories to conserve the lands and waters on which all life depends. Learn more about our work at nature.org/NewYork

Join us today

Copyright (C) 2021 The Nature Conservancy. All rights reserved.


The Nature Conservancy
79 South Ferry Rd
PO Box 850
Shelter Island, New York 11964


The Manor House 




AAQ / Resource: Stelle Lomont Rouhani Architects