| Locality | Latitude | Longitude | Distance | Bearing |
|---|
| Synnott Quarry, Portland, Middlesex County, Connecticut, USA | 41° 36' 15" N | 72° 34' 19" W | 0.3km (0.2 miles) | |
| Pelton's Quarry, Portland, Middlesex County, Connecticut, USA | 41° 36' 3" N | 72° 34' 36" W | 0.6km (0.4 miles) | |
| Penfield Quarry (Oak Leaf Quarry), Portland, Middlesex County, Connecticut, USA | 41° 35' 47" N | 72° 34' 32" W | 0.9km (0.5 miles) | |
| Carr Brook Waterfall, Collins Hill, Portland, Middlesex County, Connecticut, USA | 41° 35' 54" N | 72° 35' 36" W | 2.1km (1.3 miles) | |
| Schoonmaker Mine, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA | 41° 35' 34" N | 72° 35' 31" W | 2.2km (1.4 miles) | |
| Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA | 41° 35' 33" N | 72° 35' 30" W | 2.2km (1.4 miles) | |
| Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA | 41° 35' 31" N | 72° 35' 30" W | 2.2km (1.4 miles) | |
| Collins Hill, Portland, Middlesex County, Connecticut, USA | 41° 35' 21" N | 72° 35' 26" W | 2.3km (1.4 miles) | |
| State Forest Quarry No. 1 (State Forest #1 Quarry; Clark Hill Quarry), East Hampton (Chatham), Middlesex County, Connecticut, USA | 41° 35' 44" N | 72° 32' 27" W | 2.5km (1.5 miles) | |
| Hale-Walker prospects, Collins Hill, Portland, Middlesex County, Connecticut, USA | 41° 35' 7" N | 72° 35' 17" W | 2.5km (1.5 miles) | |
| Unnamed building stone quarry, Collins Hill, Portland, Middlesex County, Connecticut, USA | 41° 35' 22" N | 72° 35' 39" W | 2.5km (1.6 miles) | |
| Nathan Hall Quarry (Clark Hill Quarry), East Hampton (Chatham), Middlesex County, Connecticut, USA | 41° 35' 38" N | 72° 32' 24" W | 2.6km (1.6 miles) | |
| Case Quarries, Portland, Middlesex County, Connecticut, USA | 41° 37' 31" N | 72° 34' 46" W | 2.7km (1.7 miles) | |
| Clark Hill prospect, East Hampton (Chatham), Middlesex County, Connecticut, USA | 41° 35' 27" N | 72° 32' 22" W | 2.8km (1.7 miles) | |
| Gotta-Walden Prospect, Portland, Middlesex County, Connecticut, USA | 41° 37' 9" N | 72° 35' 38" W | 2.8km (1.7 miles) | |
| Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA | 41° 37' 7" N | 72° 35' 45" W | 2.9km (1.8 miles) | |
| Appletree Lane, Portland, Middlesex County, Connecticut, USA | 41° 37' 31" N | 72° 35' 21" W | 3.0km (1.9 miles) | |
| Bordonaro Quarry, Portland, Middlesex County, Connecticut, USA | 41° 37' 19" N | 72° 35' 47" W | 3.1km (2.0 miles) | |
| Great Hill cobalt mines, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA | 41° 34' 40" N | 72° 32' 58" W | 3.2km (2.0 miles) | |
| Gotta-Wannerstrom Quarry, Portland, Middlesex County, Connecticut, USA | 41° 37' 31" N | 72° 35' 47" W | 3.4km (2.1 miles) | |
| State Forest Quarry No. 2 (State Forest #2 Mica Mine; Carini Quarry), Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA | 41° 34' 27" N | 72° 33' 7" W | 3.5km (2.2 miles) | |
| Great Hill Pond Brook pegmatite, Cobalt, East Hampton (Chatham), Middlesex County, Connecticut, USA | 41° 34' 14" N | 72° 33' 33" W | 3.6km (2.3 miles) | |
| Hale Quarry (Andrews Quarry; Glastonbury Quarry), Portland, Middlesex County, Connecticut, USA | 41° 37' 45" N | 72° 35' 50" W | 3.8km (2.3 miles) | |
| Andrews Quarry (old Hale Quarry; Grandfather Andrews Quarry), Portland, Middlesex County, Connecticut, USA | 41° 37' 51" N | 72° 35' 58" W | 4.1km (2.5 miles) | |
| Nike prospect, Portland, Middlesex County, Connecticut, USA | 41° 38' 23" N | 72° 33' 54" W | 4.1km (2.6 miles) | |
| Cape Hall Quarry, Portland, Middlesex County, Connecticut, USA | 41° 38' 5" N | 72° 36' 1" W | 4.4km (2.7 miles) | |
| Simpson prospect #3, South Glastonbury, Glastonbury, Hartford County, Connecticut, USA | 41° 38' 15" N | 72° 35' 43" W | 4.5km (2.8 miles) | |
| Simpson prospect #2, South Glastonbury, Glastonbury, Hartford County, Connecticut, USA | 41° 38' 17" N | 72° 35' 41" W | 4.5km (2.8 miles) | |
| Pratt Quarry, Portland, Middlesex County, Connecticut, USA | 41° 38' 7" N | 72° 36' 3" W | 4.5km (2.8 miles) | |
| Simpson prospect #1, South Glastonbury, Glastonbury, Hartford County, Connecticut, USA | 41° 38' 18" N | 72° 35' 42" W | 4.5km (2.8 miles) | |
Case Quarries, Portland, Middlesex County, Connecticut, USA