Gunn Brook Falls has two waterfalls - each is about 15 feet high and 6 - 8 feet wide. The hike in is extremely short, just 0.2 miles out-and-back total.
The dirt road leads directly to the top of the falls so you can park there. Or you can park at the bottom of the road and walk up, there are some rough trails around.
Parking: Parking can be found at the coordinates provided, right where the road curves to the east. In the winter, if Gunn Cross Rd is covered in snow, you can park at the intersection of Falls Rd and Gunn Cross Rd (without blocking the road) and hike up the road for an additional 0.1 mile one-way to the trailhead.