Chart correction NNU-323046 — chart 259
установлен · Keweenaw Bay Weather Wave Buoy · Y Fl Y 2.5s Priv · Structure: <blank> Remark: Private Aid. Maintained from Apr. 15 to Dec. 1.
Source: NOAA Nautical Updates — critical (US waters)
Reference information — always verify against official Notices to Mariners before navigation.