Some folks were mentioning the Adirondacks. I'm not sure if this still is of interest, but there's lots of good backcountry skiing of various kinds in NY State.
The Catskill Mts have lots of little known terrain that's fun to ski when there's more than 2 feet of snow (as there is now). Many of the trails have some steepness to them, so XCD gear is useful. The woods are mostly thick with beech saplings, but you can find some good spots with more open woods. It's terra incognita for skiers for the most part, but I see people going in there on skis. There's no guide book or maps oriented to skiers, so it's still pretty Find-It-Yourself in there. I like it that way...
The Adirondack Park is huge, so you can't say just "the Adirondacks" like it was one thing. The southern and west-central parts of the Adirondack Park are where the snow collects, due to lake effect from Lake Ontario. These areas are not as straight-up mountainous as the High Peaks area (where Mt Marcy is). There are very few actual ski trails in the southern and western ADKs, but the hiking trails can be good fun when there's enough snow (as there is now). It's good territory for a setup like Madshus Annum--3-Pin Hardwire--Scarpa T4, or similar. Most of the areas where the snow gets deepest are also where the popular snowmobile trails are located. Snowmobiles are not allowed in areas designated 'Wilderness', so that's where you'll often find me.

The ADK High Peaks keep consistent snow cover up high, but that's where the terrain is steepest. The woods up high are extremely thick spruce-fir-paper birch, so most people ski the few trails that are skiable. The area has some famous skis tours like the Wright Peak Ski Trail, Whales Tail Notch Ski Trail, Mt Marcy, and the Avalanche Pass Ski Trail. These are all very popular. Google them and you'll find info and photos galore. When there's good snow cover at mid-elevations (like there is now) there are lots of hiking trails that make for good skiing.
There are some guidebooks for skiers covering the Adirondacks. Some may be out of print. Tony Goodwin wrote a good one. David Goodman's "Best Backcountry Skiing In The Northeast" covers the ADK High Peaks too.