Made a few laps on Thursday after work. Prospect Hill is a closed ski hill (http://www.nelsap.org/ma/prospecthill.html) that is still a public. There are multiple trails that are still very much skiable plus some woods where decent lines can be found. The trails themselves were skiied-snowshoed off but the snow was still good. Woods were untracked and for the most part the pitch is steep enough to actually make some turns.

Some Pictures:
Looking at the Main Face from the parking lot. There are a few more trails to the right.

Looking up one of the narrower trails:

Old T-Bar Shack

Looking down from the top of the main face:

Good woods section: