Woodhull State Forest

Bookmark my free Interactive GPS Map for your phone:
https://andyarthur.org/ny

... shows your location as a blue dot in relationship to campsites, trails, state land. This online map requires cell service, won't work in remote country, so also bring a paper map.

Free Download of New & Historical USGS 1:24k Topograpic Maps

Interactive maps with backcountry and roadside camping: New York, Pennsylvania, West Virginia & Vermont. List of NYS DEC Lean-Tos and Firetowers.

Google Spreadsheet with Roadside, Primitive and Pay Campsites

More about Watkins Glen State Park...

Watkins Glen State Park is the most famous of the Finger Lakes State Parks, with a reputation for leaving visitors spellbound. Within two miles, the glen's stream descends 400 feet past 200-foot cliffs, generating 19 waterfalls along its course. The gorge path winds over and under waterfalls and through the spray of Cavern Cascade. Rim trails overlook the gorge. Campers and day-visitors can enjoy the Olympic-size pool, scheduled summer tours through the gorge, tent and trailer campsites, picnic facilities and excellent fishing in nearby Seneca Lake or Catherine Creek, which is renowned for its annual spring run of rainbow trout.

http://nysparks.com/parks/142
http://en.wikipedia.org/wiki/Watkins_Glen_State_Park