Anyone, please correct me if these rocks/problems are already known, I couldn't find anything in any guidebooks or online. There is a main rock face with some shorter sections and outcrops (10-20 ft.) at the Coney Rock Overlook, and a few erratics to the north east on the Mullane Trail called Proposal Rocks. I believe all the rock here is gneiss, and is similar to the rest of the rock you'll find in the mansfield area (e.g. Wolf Rock and Pot Hole) The trail is sparsely traveled, I normally only see people on the weekends hiking to enjoy the sight off of the Coney Rock overlook. Also, the area also known as "Mulberry Boulders" off of Mulberry Rd. is made of the scattered boulders between the main overlook and Mulberry Rd. below. This area has more/better problems with photos soon to come.
If you look up Joshua's Trust Coney Rock Preserve and get the trail map www.mansfieldct.gov/filestorage/1904/5357/coney_rock.pdf , you'll see that there is an outlook listed as #11 on the map. Right below this are several ledges. One smaller ledge (about 15 ft.) provides many possibilities for easier slab problems or warm-ups, this is found just a little bit south off of the trail from the bench at the lookout. There are more boulders and smaller faces below that I have'nt explored. Proposal Rock (#14) is a great overhanging erratic that is easily accessed from the parking area at the end of Woodland Rd.