Get off the Beaver Meadow Road exit from Rt 9 in Haddam and head NE on Beaver Meadow Road.  At the 5-way intersection at Arnolds, turn hard right to go south on Turkey Hill Road.  Follow to first right and turn onto Filley Road.  Park to the left of the large red barn just up the road on your left.  Path to the quarry is straight ahead in the woods, it may be overgrown but opens up once you are past the edge of the woods.   Follow this nice straight path about 500 feet to the second large pegmatite on your right.  The digging area will be obvious.

The coarse-grained pegmatite vein along the bottom and then up the left side of the outcrop yields good yellow, green, and blue beryl, columbite, and spessartine.  Micro uraninites are also a possibility.  The beryl quality varies from rotten to very gemmy and good ones are tough to find these days.  Sift the dumps for fragments to cut into gems or work the narrow vein for crystals.  Lots of big mica sheets, too.  Collecting is by STATE PERMIT ONLY.  Hand tools only!!!!!

As far as I can tell, there is nothing in the mineralogical literature about this little prospect.