Chart correction N21/20 — chart 62334
62334 1Ed. 7/13/13 LAST NM N28/19 N21/20 Relocate Buoy “No 2” from 19°40′51.5″N 57°42′02.4″E to 19°40′50.0″N 57°42′29.1″E Buoy “No 3” from 19°40′50.3″N 57°42′22.3″E to 19°40′50.7″N 57°42′15.8″E Buoy “No 4” from 19°40′49.7″N 57°42′15.7″E to 19°40′52.6″N 57°41′42.8″E (3(9)20 Muscat)
Source: NGA U.S. Notice to Mariners · edition: 1Ed. 7/13/13
Reference information — always verify against official Notices to Mariners before navigation.