This dispersed camping area is down Upper Michigan Road in Pittsfield Vermont. Drive through the residential neighborhood until you hit a dirt road and see National Forest signs.
This area is open for camping year-round but probably only accessible in Spring through early Fall because the dirt road is not plowed. Beware that in Spring the road gets muddy and quite rutted, I would not recommend driving down there with a car that is low to the ground.
I liked this camping area for it's accessibility to Killington, VT and it was of course free! We camped near the beginning of the road but would recommend driving down if you can because you can camp next to the river after you cross the bridge. The area is big enough to bring an RV if you can get it down the dirt road. It is frequently camped in so fire rings exist. As with many free campsites, there was some trash (please practice LNT fellow campers!!!).
All in all great stop-over spot but not really a destination.