Chart correction N35/20 — chart 97180
97180 7Ed. 11/14/09 LAST NM N20/20 N35/20 Add Danger circle “Obstn (anchor chain)” [K40] (PA) 34°48′22″N 136°42′23″E (24(443)20 Tokyo)
Source: NGA U.S. Notice to Mariners · edition: 7Ed. 11/14/09
Reference information — always verify against official Notices to Mariners before navigation.