I second the notion that Red Tail and Black Rock provide a very nice combination.
I was fortunate enough to play Black Rock in the MGA State Father Son a few years back, and I was pleasantly surprised with the course. For what it is, given the rock outcroppings and constricting property, I thought Silva did a fairly good job with the course making it an absolute blast to play, and many holes have architectural merit as well. I particularly enjoyed the Par 5 with the punchbowl green, and the driveable par 4. Unfortunately, the format that year had us playing in 6-somes (with the selected drive-alternate shot format) so the pace of play took a lot away from what I could enjoy from the layout, but I would love to get back there in a less competitive state to more closely inspect the design merits.
Red Tail, in my opinion, is also one of the Top 3 public courses in Massachusetts. I try to get out there every summer at least once, and it is a place that great golfers and poor golfers can both enjoy, as my friends come out of the woodwork to join me out there. Unfortunately I wasn't able to get there this passed summer, as my tee time was rained out, but I wish I could add more as a true fan of the course.