The Friends of the Great Swamp
of southeastern New York State

The Great Swamp Watershed

Map Courtesy The Nature Conservancy (21.5 MB PDF)

FrOGS News

To FrOGS ARTISTS...

It's May and in 6 months it will be October, the month of the annual Great Swamp Celebration and Art Show! It's time to grab your paints and go on out to the locations where you worked last year, or even better, try new ones! This year's dates are Sat. Oct. 26th and Sun. Oct. 27th. We will display the artwork in the habitat-specific way that was so successful last year. Check here again and on Facebook for plein air "Artist's Rambles" or contact us for more information.

New Technical Documents page

Members seeking more advanced information on the Swamp can find more detailed information on our new Technical Documents page.

Recreation Requests

FrOGS receives many requests for information about using the Swamp for recreational activities. Please review our Recreation page for details.


Visit FrOGS on Facebook to see how FrOGS is active in your community.

The Great Swamp Watershed

The Great Swamp -- covering over 6,000 acres -- is one of the largest freshwater wetlands in New York State. Situated in New York's eastern Putnam and Dutchess Counties, the Great Swamp and its 63,000-acre watershed stretch 20 miles through the towns of Southeast, Patterson, Pawling and Dover. Located less than 70 miles from New York City, this vast and fragile wetland provides numerous benefits to residents of the Harlem Valley, including drinking water, flood control, recreation, open space, and wildlife habitat.

The Great Swamp offers many opportunites for receational opportunities in each of the four seasons. There are year-round opportunities to view nature, including many interesting and endangered species of plants, as well as resident and migratory animal life. Winter temperatures freeze the shallower waters of the Swamp, making hiking and cross country skiing a possibility. Spring brings birding opportunities as migratory birds return from their winter homes. Leaves return to the plants and trees, and the Spring-blooming plants give a hint of the bright colors that are to follow as warmer temperatures return. Summer activities include fishing and canoeing, and the chance to view the many plant species while in full bloom. Fall again brings special birding opportunites as many bird species migrate south to their winter homes. Many of the plant species change to spectacular Fall colors.

The Friends of the Great Swamp (FrOGS)

The friends of the Great Swamp are volunteers working with public and private agencies to preserve this unique and important area. Since 1990, it has been an active voice for protection of the functions, values and integrity of the Great Swamp. FrOGS educational programs include programs for children and the very popular, annual canoe trips on the Great Swamp. These programs teach participants about nature and the importance of a clean environment, with an emphasis on the importance of the Great Swamp.

Learn how you can become a friend of the Great Swamp through your donations and by volunteering your time.

Friends of the Great Swamp (FrOGS)
P.O. Box 373
Pawling, NY 12564
(845) 855-1917
info@frogs-ny.org