I have heard of
Chimney Rock / Washington Valley park (Somerville, Somerset County, New Jersey), but had never been there.Jackie, Jaime and myself decided to head up there for a walk. We started off in the parking lot off Newmans Lane heading towards the lake, up towards quarry, and back down to the car. Next we drove over to the overlook parking lot off Wayne road. We walked down to the Hawk Overlook, then down to the waterfall. It was a good day, and definitely recommend heading to this park for both mountain biking and hiking.