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US Coast Guard LNM - Arctic District (D17)

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SECTOR ANCHORAGE, SUBMERGED LAND ACT (SLA) - ALASKA PENINSULA General / Miscellaneous U.S. Coast Pilot® 9-NEW EDITION PUBLICATION–National Oceanic and Atmospheric Administration (NOAA) – U.S. Coast Pilot 9, Alaska: Cape Spencer to Beaufort Sea, 44th Edition, 2026, has been issued and is ready for free download and weekly updates at https://nauticalcharts.noaa.gov/publications/coast-pilot/index.html. Only Print-on-Demand (POD) bound copies are available for purchase; visit www.nauticalcharts.noaa.gov/publications/print-agents.html#coast-pilot. The 2026 Edition cancels the preceding 2025 Edition, and incorporates all previous corrections. 09/01/2026 USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, SUBMERGED LAND ACT (SLA) - BERING SEA EASTERN PART General / Miscellaneous Location: 56-09.56N 166-34.98E Submerged Data Mooring Name: AL25_AU_BS10 Water Depth: 110 m Top Float Depth: 102 m POC: Catherine Berchok Phone: 206-526-6331 Email: [email protected] Valid 2025-05-16 to 2027-05-16. USCG Arctic District Local Notice to Mariners 45/2026 ICY STRAIT - GLACIER BAY General / Hazards To Navigation / Obstructions Location: 58-40.63N 136-09.63W Submerged Data Mooring Name: Glacier Bay Oceanographic Mooring Water Depth: 1017’ Top Float Depth: 82’ POC: Mathew Cahill Phone: 907-697-2230 Email: [email protected] Valid 2024-11-12 to 2026-11-12. USCG Arctic District Local Notice to Mariners 45/2026 CROSS SOUND - ICY STRAIT General / Hazards To Navigation / Shoaling Reported Location: 58-18.14N 135-22.38W A dangerous rock was reported in this position. Mariners are advised to transit the area with caution. Questions/concerns/updates should be directed to Todd Buck with the Coast Guard District 17 Waterways Management Office at (907) 463-2269 or by email to [email protected]. Valid 2024-10-25 to 2029-10-24. USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, SUBMERGED LAND ACT (SLA) - MARMOT BAY General / Hazards To Navigation / Shoaling Reported Location: 57-47.15N 152-24.34W A dangerous rock was reported in this position approximately 20' off of the K&I Pier. This rock was reported struck by a vessel with a 16' draft at low tide, approximately +.085'. Mariners are advised to transit the area with caution. Questions/concerns/updates should be directed to Todd Buck with the Coast Guard District 17 Waterways Management Office at (907) 463-2269 or by email to [email protected]. Valid 2024-10-25 to 2029-10-24. USCG Arctic District Local Notice to Mariners 45/2026 GASTINEAU CHANNEL - MENDENHALL BAR General / Miscellaneous THE FOLLOWING AIDS TO NAVIGATION HAVE BEEN DECOMMISSIONED FOR THE SEASON ON 24SEP26: A. MENDENHALL BAR BUOY 7A (LLNR 23733) B. MENDENHALL BAR BUOY 8 (LLNR 23735) C. MENDENHALL BAR BUOY 8A (23735.15) D. MENDENHALL BAR BUOY 8B (LLNR 23735.25) E. MENDENHALL BAR BUOY 9 (LLNR 23735.1) F. MENDENHALL BAR BUOY 9A (LLNR 23735.2) G. MENDENHALL BAR BUOY 9B (LLNR 23735.3) H. MENDENHALL BAR BUOY 10 (LLNR 23735.35) I. MENDENHALL BAR BUOY 10A (LLNR 23735.45) J. MENDENHALL BAR BUOY 10B (LLNR 23735.55) K. MENDENHALL BAR BUOY 10C (LLNR 23735.62) ALL MARINERS ARE ADVISED TO TRANSIT THE AREA WITH CAUTION. USCG Arctic District Local Notice to Mariners 45/2026 NAVAREA XII General / Miscellaneous Submerged Data Mooring 26BS-2A Position: (56-51.75N 164-02.60W), water depth 72m, top of float at 10m POC: David Strausz Phone: 206-526-4510 Email: [email protected] Position 56-51.75N 164-02.60W USCG Arctic District Local Notice to Mariners 45/2026 NAVAREA XII General / Miscellaneous Submerged Data Mooring 26BS-4A Position: (57-52.03N 168-53.02W) water depth 73m, top of float at 10m POC: David Strausz Phone: 206-526-4510 Email: [email protected] Position 57-52.03N 168-53.02W USCG Arctic District Local Notice to Mariners 45/2026 NAVAREA XII General / Miscellaneous Submerged Data Mooring 26BSP-4A Position: (57-52.65N 168-53.03W) water depth 73m, top of float at 59m POC: David Strausz Phone: 206-526-4510 Email: [email protected] Position 57-21.32N 168-53.03W USCG Arctic District Local Notice to Mariners 45/2026 NAVAREA XII General / Miscellaneous Submerged Data Mooring 26BSP-5A Position: (59-55.24N 171-42.92W) water depth 70m, top of float at 59m POC: David Strausz Phone: 206-526-4510 Email: [email protected] Position 59-55.23N 171-42.92W USCG Arctic District Local Notice to Mariners 45/2026 NAVAREA XII General / Miscellaneous Submerged Data Mooring 26UPP-3A Position: (54-18.43N 164-45.10W) water depth 75m, top of float at 65m POC: David Strausz Phone: 206-526-4510 Email: [email protected] Position 54-18.43N 164-45.10W USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, SUBMERGED LAND ACT (SLA) - PRINCE WILLIAM SOUND General / Hazards To Navigation / Hazards Location: 61-10.32N 148-28.50W 61-10.24N 148-03.45W 61-02.28N 148-03.45W 60-55.81N 148-28.99W 61-10.32N 148-28.50W The State of Alaka is issuing routine updates on the Barry Arm Landslide Tsunami risk. This threat is located in Barry Arm and has the potential to create a tsunami if/when a landslide is generated that impacts the water in Barry Arm. If/when this occurs localized wave heights will be very hazardous in Barry Arm and Harriman Fjord. Port Wells and Passage Canal will also see inundation and strong, unusual currents for hours following an event. The geologic makeup of the area is similar to Alaskan locations where two previous landslide caused tsunamis occurred, in Lituya Bay (1958) and Icy Bay (2015), both causing extremely large but localized tsunamis. Mariners should maintain vigilance when in the vicinity of Barry Arm or nearby waters and be prepared to depart the area if any unusual geologic activity is observed. Studies are being conducted and the situation is being monitored to allow for a better understanding of the potential results of a slide. Additional information is available at https://dggs.alaska.gov/hazards/barry-arm-landslide.html. Valid 2024-10-28 to 2029-10-27. USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, EXCLUSIVE ECONOMIC ZONE (EEZ) General / Hazards To Navigation / Obstructions Location: 62-12.07N 174-40.91W Submerged Data Mooring Name: 24BSST-8A Water Depth: 242’ Top Float Depth: 118’ POC: David Strausz Phone: 206-526-4510 Email: [email protected] Valid 2024-12-02 to 2026-12-02. USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, EXCLUSIVE ECONOMIC ZONE (EEZ) General / Hazards To Navigation / Obstructions Location: 71-49.86N 166-00.87W Submerged Data Mooring Name: 24CKP-3A Water Depth: 144’ Top Float Depth: 121’ POC: David Strausz Phone: 206-526-4510 Email: [email protected] Valid 2024-12-02 to 2026-12-02. USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, EXCLUSIVE ECONOMIC ZONE (EEZ) General / Hazards To Navigation / Obstructions Location: 71-02.72N 160-29.29W Submerged Data Mooring Name: 24CKP-4A Water Depth: 167’ Top Float Depth: 135’ POC: David Strausz Phone: 206-526-4510 Email: [email protected] Valid 2024-12-02 to 2026-12-02. USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, EXCLUSIVE ECONOMIC ZONE (EEZ) General / Hazards To Navigation / Obstructions Location: 72-28.20N 156-34.18W Submerged Data Mooring Name: 24CKP-9A Water Depth: 3,054’ Top Float Depth: 886’ POC: David Strausz Phone: 206-526-4510 Email: [email protected] Valid 2024-12-02 to 2026-12-02. USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, EXCLUSIVE ECONOMIC ZONE (EEZ) General / Miscellaneous Location: 56-52.01N 164-02.58W Submerged Data Mooring Name: 25BSP-2A Water Depth: 72 m Top Float Depth: 62 m POC: David Strausz Phone: 206-526-4510 Email: [email protected] Valid 2025-05-02 to 2027-05-02. USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, EXCLUSIVE ECONOMIC ZONE (EEZ) General / Miscellaneous Location: 54-04.98N 163-30.03W Submerged Data Mooring Name: AL25_AU_UN04 Water Depth: 100 m Top Float Depth: 87 m POC: Catherine Berchok Phone: 206-526-6331 Email: [email protected] Valid 2025-05-02 to 2027-05-02. USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, EXCLUSIVE ECONOMIC ZONE (EEZ) General / Miscellaneous Location: 57-52.64N 168-53.02W Submerged Data Mooring Name: 25BSP-4A Water Depth: 72 m Top Float Depth: 61 m POC: David Strausz Phone: 206-526-4510 Email: [email protected] Valid 2025-05-06 to 2027-05-06. USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, EXCLUSIVE ECONOMIC ZONE (EEZ) General / Miscellaneous Location: 56-07.62N 168-18.70W Submerged Data Mooring Name: AL25_AU_PC01 Water Depth: 169 m Top Float Depth: 82 m POC: Catherine Berchok Phone: 206-526-6331 Email: [email protected] Valid 2025-05-16 to 2027-05-16. USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, EXCLUSIVE ECONOMIC ZONE (EEZ) General / Miscellaneous Location: 55-34.32N 154-58.50W Submerged Data Mooring Name: GA24_AU_CR01 Water Depth: 400 m Top Float Depth: 70 m POC: Catherine Berchok Phone: 206-526-6331 Email: [email protected] Valid 2025-05-20 to 2027-05-20. USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, EXCLUSIVE ECONOMIC ZONE (EEZ) General / Miscellaneous Location: 53-58.26N 161-39.78W Submerged Data Mooring Name: GA24-AU-SN01 Water Depth: 436 m Top Float Depth: 86 m POC: Catherine Berchok Phone: 206-526-6331 Email: [email protected] Valid 2025-05-20 to 2027-05-20. USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, EXCLUSIVE ECONOMIC ZONE (EEZ) General / Miscellaneous Location: 56-09.56N 166-34.98W Submerged Data Mooring Name: AL25_AU_BS10 Water Depth: 110 m Top Float Depth: 102 m POC: Catherine Berchok Phone: 206-526-6331 Email: [email protected] Valid 2025-05-20 to 2027-05-20. USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, EXCLUSIVE ECONOMIC ZONE (EEZ) General / Miscellaneous Submerged Data Mooring Name: GA25-AU-PO01 Water Depth: 116 m Top Float Depth: 105 m POC: Catherine Berchok Phone: 206-526-6331 Email: [email protected] Position 58-33.98N 149-59.47W USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, EXCLUSIVE ECONOMIC ZONE (EEZ) General / Miscellaneous Submerged Data Mooring Location: 64-51.48N 168-26.88W Name: AL25_AU_NM01 Water Depth: 44 m Top Float Depth: 34 m POC: Catherine Berchok Phone: 206-526-6331 Email: [email protected] Valid 2025-09-08 to 2027-09-08. USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, EXCLUSIVE ECONOMIC ZONE (EEZ) General / Miscellaneous Location: 71-45.24N 154-28.51W Name: AL25_AU_BF02 Water Depth: 105 m Top Float Depth: 99 m POC: Catherine Berchok Phone: 206-526-6331 Email: [email protected] Valid 2025-09-08 to 2027-09-08. USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, EXCLUSIVE ECONOMIC ZONE (EEZ) General / Miscellaneous Submerged Data Mooring Location: 71-49.85N 166-01.12W Name: AL25_AU_IC03 Water Depth: 45 m Top Float Depth: 39 m POC: Catherine Berchok Phone: 206-526-6331 Email: [email protected] Valid 2025-09-08 to 2027-09-08. USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, EXCLUSIVE ECONOMIC ZONE (EEZ) General / Miscellaneous Submerged Data Mooring Name: AL25_AU_IC01 Position: (70-50.05N 163-07.58W) water depth 45m, top of float at 39m (recovered AL24_AU_IC01 from same location) POC: Catherine Berchok Phone: 206-526-6331 Email: [email protected] Position 70-50.05N 163-07.58W USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, EXCLUSIVE ECONOMIC ZONE (EEZ) General / Miscellaneous Submerged Data Mooring AL25_AU_PB01 Position: (71-12.24N 157-59.92W) water depth 49m, top of float at 41m (recovered AL24_AU_PB01 from same location) POC: Catherine Berchok Phone: 206-526-6331 Email: [email protected] Position 71-12.25N 157-59.92W USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, EXCLUSIVE ECONOMIC ZONE (EEZ) General / Miscellaneous Submerged Data Mooring Name: GA25_AU_SN01 Position: (53-58.12N 161-39.82W) water depth 431 m, top of float at 83 m (recovered GA24_AU_SN01 from same location) POC: Catherine Berchok Phone: 206-526-6331 Email: [email protected] Position 53-58.12N 161-39.82W USCG Arctic District Local Notice to Mariners 45/2026 General / Miscellaneous Submerged Data Mooring Name: 25BSP-8A Position: (62-11.89N 174-39.78W) water depth 74m, top of float 61m (recovered 24BSP-8A from same location) POC: David Strausz Phone: 206-526-4510 Email: [email protected] Position 62-11.88N 174-39.78W USCG Arctic District Local Notice to Mariners 45/2026 General / Miscellaneous Submerged Data Mooring Name: 25BSST-8A Position: (62-12.28N 174-40.56W) water depth 73m, top of float 26m (recovered 24BSST-8A from same location) POC: David Strausz Phone: 206-526-4510 Email: [email protected] Position 62-12.28N 174-40.57W USCG Arctic District Local Notice to Mariners 45/2026 General / Miscellaneous Submerged Data Mooring Name: 25BSR-8A Position: (62-12.07N 174-40.94W) water depth 74, top of float 20m (recovered 24BSR-8A from same location) POC: David Strausz Phone: 206-526-4510 Email: [email protected] Position 62-12.07N 174-40.93W USCG Arctic District Local Notice to Mariners 45/2026 General / Miscellaneous Submerged Data Mooring Name: 25CKP-9A Position: (72-28.72N 156-44.50W) water depth 920m, top of float 270m (recovered 24CKP-9A approx 4 nm to the E) POC: David Strausz Phone: 206-526-4510 Email: [email protected] Position 72-28.72N 156-44.50W USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, EXCLUSIVE ECONOMIC ZONE (EEZ) General / Miscellaneous Submerged Data Mooring Name: GA26_ST_AB01 Position: 57.49970 N x 150.64863 W Water depth: 103m, top of float depth at 96m (new mooring location) POC: Catherine Berchok Phone: 206-526-6331 Email: [email protected] Position 57-29.98N 150-38.92W USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, EXCLUSIVE ECONOMIC ZONE (EEZ) General / Miscellaneous NOAA Submerged Mooring Buoy GA26_ST_PO01 Position: 58.56850 N x 149.99113 W Water depth: 136m, top of float depth 129 m (recovered GA25_AU_PO01 from same location) POC: Catherine Berchok Phone: 206-526-6331 Email: [email protected] Position 58-34.12N 149-59.47W USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, EXCLUSIVE ECONOMIC ZONE (EEZ) General / Miscellaneous The NOAA Pacific Marine Environmental Lab has a drifting mooring in the Chukchi Sea titled: 25BSFPR-14A The location of the rise buoy as of (UTC) 08-18-2026 12:01:49: - Latitude: 66° 28.38816 ' - Longitude: -167° 19.99452 ' Position 66-28.38N 167-20.00W USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, EXCLUSIVE ECONOMIC ZONE (EEZ) General / Miscellaneous Submerged Data Mooring Name: 26CKP-15A Position: (72-18.61N 167-16.27W) water depth 46m, top of float 40m POC: David Strausz Phone: 206-526-4510 Email: [email protected] Position 72-18.62N 167-16.27W USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, EXCLUSIVE ECONOMIC ZONE (EEZ) General / Miscellaneous Submerged Data Mooring Name: 26CKP-12A Position: (67-54.62N 168-10.62W) water depth 56m, top of float 48m POC: David Strausz Phone: 206-526-4510 Email: [email protected] Position 67-54.62N 168-10.62W USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, EXCLUSIVE ECONOMIC ZONE (EEZ) General / Miscellaneous Submerged Data Mooring Name: 26CKP-1A Position: (70-50.17N 163-07.14W) water depth 41m, top of float 34m POC: David Strausz Phone: 206-526-4510 Email: [email protected] Position 70-50.17N 163-07.13W USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, EXCLUSIVE ECONOMIC ZONE (EEZ) General / Miscellaneous Submerged Data Mooring Name: 26CKP-2A Position: (71-13.42N 164-13.76W) water depth 41m, top of float 36m POC: David Strausz Phone: 206-526-4510 Email: [email protected] Position 71-13.42N 164-13.77W USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, EXCLUSIVE ECONOMIC ZONE (EEZ) General / Miscellaneous Submerged Data Mooring Name: 26CKP-3A Position: (71-49.85N 166-01.13W) water depth 41m, top of float 35m POC: David Strausz Phone: 206-526-4510 Email: [email protected] Position 71-49.85N 166-01.13W USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, EXCLUSIVE ECONOMIC ZONE (EEZ) General / Miscellaneous Submerged Data Mooring Name: 26CKP-4A Position: (71-02.72N 160-29.44W) water depth 48m, top of float 41m POC: David Strausz Phone: 206-526-4510 Email: [email protected] Position 71-02.72N 160-29.45W USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, EXCLUSIVE ECONOMIC ZONE (EEZ) General / Miscellaneous Submerged Data Mooring Name: 26CKP-5A Position: (71-12.35N 157-59.68W) water depth 44m, top of float 37m POC: David Strausz Phone: 206-526-4510 Email: [email protected] Position 71-12.35N 157-59.68W USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, TERRITORIAL SEA - SECTOR ANCHORAGE, SUBMERGED LAND ACT (SLA) General / Hazards To Navigation / Obstructions ConocoPhillips Alaska, Inc. (CPAI) plans to conduct marine ocean and seabed characterization studies near Oliktok Point. Studies will include buoy installation, tide gauge installation, bathymetric surveys, and navigational hazard surveys during the open water seasons of 2024, 2025, 2026, and 2027. Temporary monitoring equipment will be placed in the area to support the studies. This request is specific to activities planned for the 2026 season; an LMN will be submitted in subsequent years as needed. Buoy installation includes the deployment and recovery of three wave buoys offshore of Oliktok Point during the 2026 open water season. Preliminary buoy locations are included in Table 1 and shown on the attached map; final buoy locations may vary by about 1 nautical mile from the preliminary locations based on planning with local vessel operators and conditions encountered in the field. Buoy 1 will be installed in shallow water, approximately 5 to 10 feet deep. Buoys 2 and 3 will be installed in deeper water, approximately 25 to 30 feet deep. All buoys will float on the surface. Final buoy locations, depths, and water depth will be recorded and submitted within two days of deployment. Each Spotter buoy will be moored to the seafloor and will have a spar buoy equipped with an LED strobe light to alert mariners. Buoys will be deployed in late-July or early- August and recovered in late-September to mid-October. One tide gauge will be installed at or near the Oliktok Point during the 2026 open water season. The tide gauge will consist of a pressure transducer located in a water depth of three to five feet, a cable to shore, and a data recorder onshore. The pressure transducer will be located about 20 feet from shore and will be mounted on a ¾ inch pipe that sticks up above the water approximately 3 feet. The pipe will be driven 2 to 3 feet into the seabed using a post drive and will be clearly marked for safety. The onshore data recorder will be kept in a weather resistant container (e.g. cooler or bucket) and secured to the gravel bag jetty on the west side of Oliktok Point. A survey staff will be installed next to the pressure transducer to provide manual readout. The staff will also be attached to a ¾ inch pipe driven into the seabed in the same manner as the pressure transducer. The tide gauge will be installed at the beginning of the open-water season. The tide gauge and associated materials will be removed prior to freeze up. The stake on which the tide gauge is mounted could present a hazard for small boats transiting near the beach. Mariners should reduce wake when transiting the area and maintain a distance of at least 100 feet from the stake in the water and the data recorder on shore. Work is planned to begin as early as July 10, 2026. Please contact Miranda Buckmaster at (907) 263-4868 or [email protected] should you have any questions or require additional information. USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, TERRITORIAL SEA - SECTOR ANCHORAGE, SUBMERGED LAND ACT (SLA) General / Miscellaneous Submerged Data Mooring Location: 70-50.05N 154-28.58W Name: AL25_AU_IC01 Water Depth: 45 m Top Float Depth: 39 m POC: Catherine Berchok Phone: 206-526-6331 Email: [email protected] Valid 2025-09-08 to 2027-09-08. USCG Arctic District Local Notice to Mariners 45/2026 General / Miscellaneous Submerged Data Mooring Name: 25CKFPR-2A Position: (71-12.64N 164-16.25W) water depth 42m, float on surface (New surface buoy with flashing yellow light every 4s) POC: David Strausz Phone: 206-526-4510 Email: [email protected] Position 60-34.48N 150-32.77W USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, TERRITORIAL SEA - SECTOR ANCHORAGE, SUBMERGED LAND ACT (SLA) General / Miscellaneous ConocoPhillips Oliktok Point Buoy 1 Deployed August 5, 2026 10:05am AKDT 70.5330167°,-149.8672333° Position 70-31.98N 149-52.03W USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, TERRITORIAL SEA - SECTOR ANCHORAGE, SUBMERGED LAND ACT (SLA) General / Miscellaneous ConocoPhillips Oliktok Point Buoy 2 Deployed August 5, 2026 10:27am AKDT 70.5676°,-149.9409° Position 70-34.05N 149-56.45W USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, TERRITORIAL SEA - SECTOR ANCHORAGE, SUBMERGED LAND ACT (SLA) General / Miscellaneous ConocoPhillips Oliktok Point Buoy 3 Deployed August 5, 2026 11:04am AKDT 70.5233667°,-150.0814667° Position 70-31.40N 150-04.88W USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, TERRITORIAL SEA - SECTOR ANCHORAGE, SUBMERGED LAND ACT (SLA) General / Miscellaneous The three data collection spotter buoys deployed for the open water season were retrieved September 30, 2026. The tide gauge was removed on July 28, 2026. Buoy locations: Buoy 1 70-32.1503N 149-52.7995W Buoy 2 70-34.5981N 150-0.3398W Buoy 3 70-35.2073N 150-1.6557W Location: 70-30.79N 149-52.15W Valid 2026-10-05 to 2027-04-03. USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, EXCLUSIVE ECONOMIC ZONE (EEZ) - SECTOR ANCHORAGE, TERRITORIAL SEA General / Miscellaneous Location: 54-18.40N 164-45.11W Submerged Data Mooring Name: 25UPP-3A Water Depth: 74 m Top Float Depth: 66 m POC: David Strausz Phone: 206-526-4510 Email: [email protected] Valid 2025-05-02 to 2027-05-02. USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, EXCLUSIVE ECONOMIC ZONE (EEZ) - SECTOR ANCHORAGE, TERRITORIAL SEA General / Miscellaneous Location: 54-26.06N 165-16.37W Submerged Data Mooring Name: AL25_AU_UN01 Water Depth: 160 m Top Float Depth: 146 m POC: Catherine Berchok Phone: 206-526-6331 Email: [email protected] Valid 2025-05-02 to 2027-05-02. USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, EXCLUSIVE ECONOMIC ZONE (EEZ) - SECTOR ANCHORAGE, TERRITORIAL SEA General / Miscellaneous Location: 53-37.83N 167-24.01W Submerged Data Mooring Name: AL25_AU_UM01 Water Depth: 89 m Top Float Depth: 82 m POC: Catherine Berchok Phone: 206-526-6331 Email: [email protected] Valid 2025-05-16 to 2027-05-16. USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, EXCLUSIVE ECONOMIC ZONE (EEZ) - SECTOR ANCHORAGE, TERRITORIAL SEA General / Miscellaneous Location: 57-01.38N 152-59.94W Submerged Data Mooring Name: GA24-AU-BT01 Water Depth: 84 m Top Float Depth: 74 m POC: Catherine Berchok Phone: 206-526-6331 Email: [email protected] Valid 2025-05-20 to 2027-05-20. USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, EXCLUSIVE ECONOMIC ZONE (EEZ) - SECTOR ANCHORAGE, TERRITORIAL SEA General / Miscellaneous Location: 71-12.24N 154-28.92W Name: AL25_AU_PB01 Water Depth: 49 m Top Float Depth: 41 m POC: Catherine Berchok Phone: 206-526-6331 Email: [email protected] Valid 2025-09-08 to 2027-09-08. USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, EXCLUSIVE ECONOMIC ZONE (EEZ) - SECTOR ANCHORAGE, TERRITORIAL SEA General / Miscellaneous Submerged Data Mooring Name: GA25_AU_SU01 Position: (56-35.94N 156-59.85W) water depth 135 m, top of float at 127 m (recovered GA24_AU_SU01 from same location POC: Catherine Berchok Phone: 206-526-6331 Email: [email protected] Position 56-35.93N 156-59.85W USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, EXCLUSIVE ECONOMIC ZONE (EEZ) - SECTOR ANCHORAGE, TERRITORIAL SEA General / Miscellaneous Submerged Data Mooring Name: GA25_AU_BT01 Position: (57-01.40N 153-00.04W) water depth 82 m, top of float at 74 m (recovered GA24_AU_BT01 from same location) POC: Catherine Berchok Phone: 206-526-6331 Email: [email protected] Position 57-01.40N 153-00.03W USCG Arctic District Local Notice to Mariners 45/2026 SECTOR ANCHORAGE, EXCLUSIVE ECONOMIC ZONE (EEZ) - SECTOR ANCHORAGE, TERRITORIAL SEA General / Miscellaneous Submerged Data Mooring Name: GA25_AU_SE01 Position: (58-42.16N 152-11.22W) water depth 129m, top of float at 117 m (recovered GA24_AU_SE01 from same location) POC: Catherine Berchok Phone: 206-526-6331 Email: [email protected] Position 58-42.15N 152-11.22W USCG Arctic District Local Notice to Mariners 45/2026 SITKA SOUND - WESTERN CHANNEL General / Miscellaneous Location: 57-03.24N 135-21.03W 57-03.06N 135-20.75W 57-03.02N 135-20.87W 57-03.28N 135-21.16W 57-03.24N 135-21.03W A Permanently moored unlit barge outside of Mt. Edgecome High School on Japonski Island. Mariners use extreme caution when transiting the shoreline of West Channel, especially during the hours of darkness and reduced visibility. Valid 2026-10-12 to 2027-10-12. USCG Arctic District Local Notice to Mariners 45/2026 AIDS TO NAVIGATION DISCREPANCIES 90 aids reported with a discrepancy. NAME | LLNR | STATUS | AID TYPE Finger Shoal Lighted Bell Buoy 3 | 27520 | MISSING | FD Cape Alitak Light | 26920 | LT EXT | FD Cape Krenitzen Light 7 | 27285 | LT IMCH | FD Bechevin Bay Buoy 28 | 27390 | MISSING | FD Bailey Ledge Light | 27505 | LT EXT/STRUCT DMGD | FD Washington Bay Light | 23515 | DAYMK MISSING | FD Morris Reef Lighted Buoy 35 | 24035 | MISSING | FD Morris Reef Lighted Buoy 35 | 24035 | MISSING | FD Morris Reef Lighted Buoy 35 | 24035 | MISSING | FD Point Augusta Light | 24105 | NIGHT LT BURNING DAY | FD Nesbitt Reef Light | 22490 | DAYMK MISSING | FD Bushy Island Light | 22510 | LT IMCH | FD Bay Point Daybeacon BP | 22525 | DAYMK DMGD | FD Dry Pass Daybeacon 3 | 24790 | MISSING | FD Dry Pass Daybeacon 3 | 24790 | STRUCT DEST | FD Mitchell Rock Daybeacon | 24957 | STRUCT DEST | FD Elfin Cove Daybeacon 5 | 24260 | STRUCT DEST | FD Harris Island Light 2 | 22000 | DBD DEST | FD Cape Fanshaw Light | 23260 | LT IMCH | FD Aiaktalik Island Light 5 | 26910 | LT EXT | FD Rush Point Shoal Buoy 1 | 24220 | MISSING | FD The Sisters Light | 24135 | VEGETATION | FD Keku Strait Entrance Light | 23305.100000000002 | STRUCT DEST | FD Keku Strait Daybeacon 4 | 23305.3 | STRUCT DEST | FD Keku Strait Daybeacon 15 | 23306 | STRUCT DEST | FD Keku Strait Daybeacon 18 | 23306.2 | STRUCT DEST | FD Keku Strait Daybeacon 25 | 23306.7 | STRUCT DEST | FD Keku Strait Daybeacon 37 | 23307.600000000002 | STRUCT DEST | FD Keku Strait Daybeacon 39 | 23307.7 | DAYMK DMGD | FD Keku Strait Daybeacon 39 | 23307.7 | STRUCT DEST | FD Keku Strait Daybeacon 41 | 23307.8 | STRUCT DEST | FD Klawock Tow Channel Daybeacon 3TC | 24600 | STRUCT DMGD | FD Okwega Pass Light OP | 27872 | STRUCT DEST | FD Lisianski Inlet Daybeacon 4 | 24300 | STRUCT DEST | FD Poundstone Rock Lighted Bell Buoy PR | 23845 | LT EXT | FD Sentinel Island Light | 23850 | LT EXT | FD False Point Retreat Light 4 | 23960 | DAYMK MISSING | FD False Point Retreat Light 4 | 23960 | DAYMK MISSING | FD Funter Bay Entrance Light 1 | 23975 | LT EXT | FD Funter Bay Buoy 3 | 23980 | LT EXT | FD Hanin Rock Light | 26560 | LT EXT | FD Mendenhall Bar Buoy 8 | 23735 | OFF STATION | FD Mendenhall Bar Buoy 8 | 23735 | ADRIFT | FD Walden Rock Light 6 | 22125 | DAYMK MISSING | FD Nome Harbor Entrance Light 1 | 27963 | LT EXT | FD Dippy Island Rock Daybeacon 3 | 25355 | STRUCT DEST | FD Hanks Island Rock Light 5 | 25550 | STRUCT DEST | FD Orca Inlet Channel Light 12 | 25575 | STRUCT DEST | FD NOAA Data Lighted Buoy 46060 | 25646 | ADRIFT | FD Sergius Narrows Buoy 8 | 25195 | OFF STATION | FD Port Alexander Light | 23465 | REDUCED INT | FD Valdez Boat Harbor Light 2 | 25815 | LT EXT | FD Valdez Boat Harbor Light 2 | 25815 | LT EXT | FD Valdez Boat Harbor Light 3 | 25820 | LT EXT | FD Valdez Boat Harbor Light 3 | 25820 | LT EXT | FD Port Valdez Servs Dock Lights (2) | 25822 | OFF STA | PA Portage Pass Daybeacon 11 | 23355 | STRUCT DEST | FD Schooner Rock Light 1 | 25525 | LT EXT | FD Applegate Shoals Light | 25845 | DAYMK MISSING | FD Applegate Shoals Light | 25845 | DAYMK MISSING | FD 4th of July Channel LT 1 | 26005 | STRUCT DEST | PA Seward Marine Dock Light | 26010 | LT EXT | PA Cape Chiniak Light | 1185 | LT EXT | FD St. George Harbor Entrance Light 1 | 27827 | STRUCT DEST | FD St. George Harbor Daybeacon 2 | 27828 | STRUCT DEST | FD Northwest Corner Light | 1365 | DBD DEST | FD Kalgin Island Light | 26300 | DBD DEST | FD Kalgin Island Light | 26300 | DBD DEST | FD Fire Island Range Front Light | 26410 | REDUCED INT | FD Point Romanof Light | 27895 | DAYMK DMGD | FD Point Romanof Light | 27895 | STRUCT DMGD | FD Unalakleet River Buoys (About 6) | 27915 | MISSING | FD Unalakleet River Buoys (About 6) | 27915 | Status Unreported | FD Seal Cape Light | 27130 | STRUCT DEST | FD Vitskari Island Light | 24915 | RAC INOP | FD False Point Pybus Daybeacon | 23585 | DAYMK MISSING | FD Hobart Bay Light 2 | 23595 | DAYMK MISSING | FD Middle Point Light | 23785 | LT EXT | FD Portland Island Light | 23805 | LT EXT | FD Hydaburg Daybeacon | 24392 | DBD DEST | FD Hydaburg Daybeacon | 24392 | DAYMK MISSING | FD Hydaburg Daybeacon | 24392 | DAYMK MISSING | FD Point Baker Light | 23295 | DBD DMGD | FD Tlevak Narrows Light 2 | 24440 | DAYMK MISSING | FD Tlevak Narrows Light 2 | 24440 | DAYMK MISSING | FD Vallenar Rock Light | 22295 | LT EXT | FD Guard Island Light | 22300 | LT EXT | FD Northeast Arm Light 1 | 27000 | DAYMK MISSING | FD Wrangell Narrows Channel Lighted Buoy 2A | 22855 | LT EXT | FD Found Island Rock Daybeacon | 22550 | DAYMK MISSING/STRUCT DMGD | FD Abbreviations: ADRIFT adrift; DAYMK DMGD daymark damaged; DAYMK MISSING daymark missing; DBD DMGD dayboard damaged; LT EXT light extinguished; LT IMCH light improper characteristic; MISSING missing; OFF STA off station; OFF STATION off station; STRUCT DEST structure destroyed; STRUCT DMGD structure damaged. FD federal aid, PA private aid. USCG Arctic District Local Notice to Mariners 45/2026

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