Whiteface Trail is one of the easier runs in the Belknap Range. From Belknap Mountain Road it takes you to the summit of Whiteface Mountain via a generally moderate trail. The majority of this trail is wide, mostly doubletrack, if not slightly narrower. Note that about a mile of this trail is shared with a Jeep/ATV trail that is on occasion used by vehicles.
The trail begins from the end of Belknap Mountain Road. There is a small parking area at the end of the paved portion of the road and then cars typically spill over onto one side of the road. Travel a short distance down the dirt road past one house on the left, the trail begins on the left before you reach the second house.
As of October 2020 the trail was generally well maintained, easy to follow and marked by blue blazes.
The trail immediately starts to climb at a moderate pace roughly the same moderate climb until meeting up with the Piper-Whiteface Link
Trail, about 0.7 miles from where you started.
As you continue along after passing the Piper-Whiteface Link
trailhead the trail narrows up a bit before widening again in a grassy clearing just a few hundred feet ahead. At this point you meet up with the Jeep/ATV trail and the trail remains a wide doubletrack all the way to the summit. The trail also mostly levels out until a steeper climb just before the summit.
At about 1.25 you'll reach that steeper climb, when you reach the top of it you'll have solid view west and partial views north, particularly of Piper Mountain. This viewpoint is at about 1.4 miles or so, you'll find these are the best views. Continue another tenth of a mile or so to the summit.
Also note: Hiking Project shows this trail at just under 700 ft of elevation gain, it's more like 550 actually running it.