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The mission of Great Mountain Forest is to be a leader in forest stewardship. We practice sustainable forest management, promote biodiversity and resilience to climate change, support education and research, and welcome all who love the woods.

Great Mountain Forest 

October 2023

Open Forest Day

GMF Forest Inventory

Halloween Flora and Fauna

Open Forest Day


“There’s no such thing as bad weather, only unsuitable clothing.”

-         Old Scandinavian saying 


The first Open Forest Day in quite a few years was preceded by days of heavy rain that finally slowed to a steady drizzle and finished with the promise of beautiful weather for the following day. The hardy and appropriately attired attendees were educated by engaging lectures and enjoyed various activities and displays, wonderful food, and live music. 

GMF Forest Inventory


A forest inventory surveys the location, composition, and distribution of the different species of trees in a defined area. This information typically supports the planning of silvicultural activity, drives management decisions at various levels, and can identify forest health issues like insect damage or disease infestation, or help assess habitat and biodiversity.

An inventory of Great Mountain Forest conducted in 1930 reveals a very different vegetation composition than today's. In the map, the yellow areas were all fields or early successional sites, and only the uncolored portions represent hemlock, pine, and mixed hardwoods. GMF has started an updated full-forest inventory using the same compartments, or delineated areas as originally established.


Compartments frequently use naturally occurring or easily identifiable boundaries to set off each area to be inventoried. Two roads and two town lines border this hand-drawn compartment #9 map of 257 acres in Great Mountain Forest.


If you are wondering how Goshen got to be above Norfolk,

the map bearing shows that north is at the bottom of the map. 


Myotis lucifugus, Eptesicus fuscus, phytoplasma infections! Happy Halloween!

Great Mountain Forest is home to at least two of the most common bats in Connecticut. The little brown bat weighs in at less than half an ounce, with a wingspan of 9 to 11 inches and a body only 2 to 4 inches long. They belong to the taxonomic family Vespertilionidae, with Myotis translating to “mouse-eared,” and lucifugus to “light-fleeing.” This bat species has suffered declines in population from the fungal infection that causes white-nose disease.


The big brown bat belongs to a different genus than its more diminutive cousin; the impressive nomenclature of the “vespertilionid Eptesicus fuscus” means “brown bat that flies around in the evening.” These reach almost a full ounce in weight with a wingspan of just over a foot. Both of these bats eat insects, but sadly eschew mosquitos, as those fly closer to the ground than bats prefer to hunt.    

Witches Broom


Witches’ broom results from fungal, viral, or phytoplasma-induced disease in woody plants. These infections disrupt the plant hormone cytokines that direct plant growth, resulting in the proliferation of lateral buds. If the term cytokine sounds familiar, these same compounds are involved in the human inflammatory response and get added to cosmetics to “slow skin aging” or are blamed for an inflammatory response from eating refined carbohydrates.    


Plants and fungi with names that remind us of Halloween

Witch hobble

Witch hazel, in bloom

this time of year.

White baneberry, also with the slightly creepy name of dolls’ eyes 

Jack-o'lantern mushroom

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Forest Notices


Welcome to the forest!


GMF is a place of peaceful co-existence for everyone


  • Keep your dog on a leash and if you pack it in--pack it out.



  • Sign in at kiosks at the East and West Gates.


  • Watch for inclement weather notices on social media

and website.




Stand with the Trees!

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Your generosity makes our work possible!

GMF is critical to the environmental and economic sustainability of the region as well as an important contributor to research and education about climate change and environmental health. Help us support the forest as a vital natural resource and a place for those who love the woods.

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