List of Trail systems I know of here in CNY:

Highland Forest
Green Lakes State Park
Beaver Lake Nature Center
Clark's Reservation
Skytop (Syracuse University's South Campus)
Camillus Unique Area
Elmwood Park (behind Corcoran High School)

If you know of any others please comment and let me know.  I plan on utilizing as many as I can throughout the year so that our group can stay stimulated with differing environments.
NEXT GROUP RUN IS NOVEMBER 16.  (Elmwood Park- OCC trails) Meet at Swallows Tavern at 9am.