Chart correction 16/21 — chart 21338

21338 5Ed. 2/12/11 LAST NM 9/18 16/21 Add Buoy Y, conical, Fl Y 10s with legend “wave meter” [Q130.6] 20°39′40.9″N 105°16′27.4″W (4(70)21 (SM) Mexico, D.F.)

Source: NGA U.S. Notice to Mariners · edition: 5Ed. 2/12/11

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