Sundown Wild Forest

The 30,100-acre Sundown Wild Forest in the Sullivan County Town of Neversink and the Ulster County Towns of Denning, Rochester, Wawarsing and Olive, covers a large swath of the southeast Catskills, including several ridges and 10 mountains over 2,000 feet. The area has a varied topography and an impressive mix of natural features – mountains, waterfalls, valleys and rivers – rich with fishable trout streams, hiking destinations, hunting opportunities and snowmobile trails. Sundown is accessible from many county and town roads. Key places to visit in the Wild Forest are the Kanape Valley and Ashokan High Point, Vernooy Kill Falls, Denman Mountain, Red Hill Fire Tower and the Peekamoose Valley.

http://www.dec.ny.gov/lands/75346.html

Mongaup Pond State Campgrouund

Mongaup Pond State Campgrouund is located in north eastern Sullivan County. It is situated on a 120 acre lake, the largest body of water in the Catskill Park outside of the N.Y.C. Reservior system. This map shows both fee-campsites (dark brown) and free campsites (yellow) in the nearby vicinity, along with trails.  You can zoom in for details. More information about this campground: https://www.dec.ny.gov/outdoor/24484.html