From the top of the Belleayre ski resort, head east on the Belleayre Ridge Trail
, passing the Cathedral Glen lean-to. The trailhead will be another couple hundred feet on your left, but it is difficult to spot. It's only marked with two blue circular trail markers and a faded red ribbon wrapped around a tree.
The top section of the trail is a serious technical descent, super steep and rocky, and those moss-covered rocks are slippery when wet. The next section of the trail is a lot smoother but it follows the double black Cathedral Glen ski run, so it's still steep enough that you're probably going to be hanging behind your seat the whole time. The final third of the trail takes you into the woods on the side of the Cathedral Brook ravine.
At the end of the trail, you'll pass the trail registry and come out at Glen Pond on the Ulster-Delaware Railroad Curve
. If you take a left after the pond, you can work your way back through the cross-country ski trails to one of the parking lots.