Yes, that is an unmaintained trail that leads to Mink Hollow (between Plateau and Sugarloaf). It's the fastest and easiest way off the mtn for that section. The trail that leads south from Mink Hollow is longer as well as the trail that leads back to the Roaring Kill parking area is longer.
You can get there by pretty much:
http://maps.google.com/maps?f=q&hl=...2.160222,-74.149904&spn=0.014093,0.04137&om=1
Heck, that is easier.. Look for Mink Hollow Road.. You can get there by going to Tannersville, NY via Rt 23A and then going south on CR16 (at the stop light in tannersville (ice cream shop
on the far left corner)). Follow CR16 til you see Elka Park road on the right at the corner. Then make the right onto Mink Hollow Road and take that all the way to the end and park.
The trail to Mink Hollow is obvious and fairly easy to follow. Compass to the south works in a backup. There's one stream to cross which might be hard to do in spring but is piece of cake for the most part. It's kind of a wide road after the first 50 yards from the road.
It's also very easy to make the right onto Park Road before Mink Hollow. I know I have done it, Mcorsar has done it, there is even an informal sign that says "trail" or something there.. Don't be fooled!
Also, CR16 can be odd to follow south of Rt 23A:
CR16 is also known as Railroad Ave, which becomes Spruce St which turns into Platte Clove Road. At the intersection of Railroad ave and S. Main St, it's a big open intersection with no sign, just need to somewhat bear right to continue to Spruce St..