Expect a fairly good trail (old jeep trail), mostly firm sand.
There isn't a real end, you may find some concrete, that's all what's left of a wooden marker.
At that point the road is faint and goes up to a rocky saddle.
A nice end point is Wilson peak, an easy to hike up hill, with some small boulders.
In 2012 the area burned down, it's regenerating slowly.
How to get here:
Start at S22 Mile 10.5 On Old Culp Valley Road, or at S22 Mile 7 On the Jasper trial (easier). Check the road conditions at the visitor center.
From Mile 10.5 a high clearance car is essential and an AWD is preferred and may be necessary.
At Mile 7 the road is normally good, but may have some gullies. Some ground clearance is advised.
Drive the Jasper trail up to the first four way crossing. Turn left on the (old) Culp valley road (signed).
Drive past the slab and park at the signed Wilson trail head.