Chart correction 4278 — chart 2921
Chart 2921 (Panel 1) [ previous update 3543/26 ] NAD83 DATUM Insert ´PA 38° 29´·18N., 76° 27´·91W. Wk37/26 II 2.38
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.