Nordic TR for Hammond Hill State Forest
Last weekend I went to Hammond Hill State Forest for a 12 km race. This is ~ 8 miles east of Ithaca. I don't have info on number of trails, trail distance etc.
The state allowed the race organizer to groom trails the night before and morning of the race. While they benefited from the big post-Christmas storm, it was 40+ on race day and things were warming up and getting thin.
The rest of the winter, this is ungroomed, backcountry skiing. You're basically skiing on single track. The grades were reasonable both up and down, however I was on a 6 km loop and there was a lot of the trail system I didn't ski. It's very pretty up there, a nice mix of hardwoods and evergreens.
There was a warming hut on Hammond Hill Rd that was open for the race; I don't know whether it's open the remainder of the winter.
If you're looking for more of a backcountry skiing experience and don't mind making your own tracks, check out Hammond Hill. You might try reaching out to cayuganordicski.org to inquire about conditions.