The Mountaintop Cooperative Council is a group of non-profit organizations working closely together to improve the northern Catskill Mountains.

Catskill Mountain Foundation
The Mountain Top Historical Society
The Greene Room Players
The Mountain Top Arboretum
Town of Hunter Chamber of Commerce
Greene County Promotions Department
Greene County Tourism Association
The Catskill Center for Conservation and Development
The Pratt Museum
Black Dome Press
The Trailside Ski Club
The Advisory Council on Historic Preservation