Chart correction N37/23 — chart 37231

37231  19Ed.  11/12/11  LAST  NM  N34/23  N37/23 Delete Buoy "Robbenloch"   53°57′50″N  8°18′26″E Add Buoy "Nordertill" RW, spar, ball topmark [Q130.5]   53°54′45″N  8°21′42″E (See N23/23) (34(1220)23 Hamburg)

Source: NGA U.S. Notice to Mariners · edition: 19Ed. 11/12/11

Reference information — always verify against official Notices to Mariners before navigation.