OCTOBER at Mashomack

Trails are open 7 days a week, dawn to dusk 


The Visitor Center Exhibits are open
Thursday – Saturday, 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 restrooms open daily, 8 AM – 5 PM 


Photo 1) Greater Yellowlegs wading through a coastal pond; Photo 2) Chicken of the Woods in the forests of Mashomack.

 © Don Bindler

Autumn’s Arrival at Mashomack 

Autumn is one of the most picturesque times of year at Mashomack and the seasonal shift can be felt in the air, on the water and through the forests and fields. Common summer residents like the Greater Yellowlegs have begun migrating, while fall colors are now peeking through the canopy and on the grounds below. Fungi, like this showy Chicken of the Woods can be seen dotting the forest floor as you stroll through the trails.

Come embrace the change of seasons—and the incredible colors of fall—with our Mashomack team and take a hike through the woods, volunteer on the trails or attend one of our fall programs. Below is a sample of upcoming events.  

Advance registration is required for all programs. For questions or to reserve your spot, please email MashomackPreserve@tnc.org.


Volunteer with Us 

Calling all crafters! We have lots of programs coming up and lots of prep to do! Interested in helping us decorate for the season? Or helping us prepare for an event? Or perhaps you’d like to take advantage of the crisp fall air and volunteer at our Visitor Center or out on the trails?  To learn more, please email us at MashomackPreserve@tnc.rog. 

  ©Rebecca Kusa/ TNC  

Mashomack volunteer Jeanne Marie Merkel helps ready our Manor House for the holiday season.  


Fall Programming 

 © Rebecca Kusa/TNC

Fall Seedlings


  • 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: Friday, October 27th, 5:00 – 7:00 PM  

One of our most anticipated events at Mashomack! Come walk in the woods at night along our self-guided Halloween trail. Meet some interesting and entertaining nature characters in costume and have some not-too-scary fun. Don your Halloween costume and join us on the trails!


Autumn Foliage Truck Tour 

 Date: Saturday, October 28th, 10:00 – 11:30 AM

Take a ride through the forest with us as we appreciate the changing colors of fall at the preserve. We’ll take in the sights, sounds and smells of autumn on the east end of Long Island.


Volunteer Leaf Cleanup and Cider at the Manor House 

Dates : Friday, December 1st and Saturday December 2nd , 9:00 AM – 2:00 PM (drop-in) 

Join us on the Manor House lawn to help with our annual leaf cleanup. The leaves are sent to Sylvester Manor, where they serve as a key part of their local composting effort. Warm up with hot cider on the porch of the Manor House afterwards.  


Save the Date!
Mashomack Holiday Open House 

Saturday, December 9th , 3:00 – 5:00 PM 

Event updates and additional information at nature.org/events. Advanced registration is required for all programs. For questions or to reserve your spot, please email MashomackPreserve@tnc.org.  


October Book in the Woods 

Hiking Day by Anne Rockwell 

Hiking a mountain for the first time can be both intimidating and amazing. Follow a young girl and her family as they climb up the trail, finding toads, porcupines, tall trees and tiny berries.  


How Your Photography Can Help Save the World

There’s a story to tell in anything and everything we want to protect. Through photography, we all have the power to tell that story from infinite angles.  

Learn More Here 


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 



AAQ / Resource: Stelle Lomont Rouhani Architects