Chart correction 26/23 — chart 13003
★13003 52Ed. 10/01/15 LAST NM 14/23 26/23 Add Caution note "CAUTION UNEXPLODED ORDNANCE This area is a former firing range active from 1952 to 1961. Mariners are cautioned against anchoring, dredging, or trawling in this area due to the possible existence of unexploded ordnance." 42°28.3′N 71°35.2′W "Unexploded ordnance (see note)" area [N1.1] bound by shore and dashed line joining 41°56.3′N 69°58.8′W 42°03.2′N 69°42.8′W 42°01.1′N 69°40.7′W 42°00.0′N 69°39.8′W 41°59.0′N 69°39.3′W 41°56.7′N 69°38.4′W 41°54.3′N 69°38.0′W 41°51.9′N 69°38.1′W 41°49.6′N 69°39.0′W 41°47.5′N 69°40.0′W 41°45.2′N 69°42.0′W 41°43.4′N 69°44.1′W 41°41.9′N 69°46.6′W 41°52.8′N 69°57.2′W (NOS)
Source: NGA U.S. Notice to Mariners · edition: 52Ed. 10/01/15
Reference information — always verify against official Notices to Mariners before navigation.