Chart correction N31/23 — chart 24502

24502   7Ed.  05/20/17  LAST  NM  N23/23  N31/23 (Panel B) Add Cone topmark to buoy "No 22"  11°00′45.2″N  74°46′23.8″W Cone topmark to buoy "No 20"  11°00′59.7″N  74°46′40.5″W (See N04/23) (219/23 Bogota)

Source: NGA U.S. Notice to Mariners · edition: 7Ed. 05/20/17

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