There are also places up in Vermont too. Especially in the Jay Peak area, but that is way too far for OC. I've heard of a few places in the Catskills too, but only when we get hit really hard.
Good places to look for on the east coast, are closed mountains. Some of them get enough hiking and winter traffic to keep the vegetation down to do some riding in the winter. Not quite real backcountry, but beggers can't be choosers.