Chart correction N42/23 — chart 14196
14196 1Ed. 11/23/18 LAST NM N22/23 N42/23 Relocate Buoy "AD11" from 45°25′37.4″N 73°46′10.8″W to 45°25′40.3″N 73°46′21.5″W Substitute Buoy "AD7" G, pillar, QG for buoy "Dor-A" 45°25′34.9″N 73°45′53.3″W Add Buoy "AD8" R, spar 45°25′36.6″N 73°45′45.3″W (8/23 Ottawa)
Source: NGA U.S. Notice to Mariners · edition: 1Ed. 11/23/18
Reference information — always verify against official Notices to Mariners before navigation.