Recorded chokepoint passages for Undaunted, newest first. The record, not the map: this feed carries passages already in the archive, which ends at December 2025. Vessel data derived from the Nationwide Automatic Identification System (NOAA Office for Coastal Management, marinecadastre.gov), CC0.https://freighterlog.com/vessels/undaunted/en-usVessel data derived from the Nationwide Automatic Identification System (NOAA Office for Coastal Management, marinecadastre.gov), CC0. Transit and lock data from the St. Lawrence Seaway Management Corporation / Saint Lawrence Seaway Development Corporation public vessel-transit table (seaway-greatlakes.com).Wed, 23 Sep 2026 18:23:30 GMThttps://freighterlog.com/log/mackinac/2025-12/freighterlog:passage:366780000:2025-12-15T19:07:05ZUndaunted (Interlake Logistics Solutions) crossed Straits of Mackinac westbound on 15 Dec 2025 14:07 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Mon, 15 Dec 2025 19:07:05 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:366780000:2025-12-14T18:01:29ZUndaunted (Interlake Logistics Solutions) crossed Soo Locks (St. Marys River) downbound on 14 Dec 2025 13:01 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 14 Dec 2025 18:01:29 GMThttps://freighterlog.com/log/soo/2025-12/freighterlog:passage:366780000:2025-12-13T23:45:01ZUndaunted (Interlake Logistics Solutions) crossed Soo Locks (St. Marys River) upbound on 13 Dec 2025 18:45 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 13 Dec 2025 23:45:01 GMThttps://freighterlog.com/log/mackinac/2025-12/freighterlog:passage:366780000:2025-12-13T14:06:56ZUndaunted (Interlake Logistics Solutions) crossed Straits of Mackinac eastbound on 13 Dec 2025 09:06 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 13 Dec 2025 14:06:56 GMThttps://freighterlog.com/log/mackinac/2025-12/freighterlog:passage:366780000:2025-12-06T18:38:05ZUndaunted (Interlake Logistics Solutions) crossed Straits of Mackinac westbound on 6 Dec 2025 13:38 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 06 Dec 2025 18:38:05 GMThttps://freighterlog.com/log/port-huron/2025-12/freighterlog:passage:366780000:2025-12-02T22:28:35ZUndaunted (Interlake Logistics Solutions) crossed Port Huron / Blue Water Bridge upbound on 2 Dec 2025 17:28 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Tue, 02 Dec 2025 22:28:35 GMThttps://freighterlog.com/log/detroit-river/2025-12/freighterlog:passage:366780000:2025-12-02T15:13:29ZUndaunted (Interlake Logistics Solutions) crossed Detroit River / Ambassador Bridge upbound on 2 Dec 2025 10:13 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Tue, 02 Dec 2025 15:13:29 GMThttps://freighterlog.com/log/detroit-river/2025-11/freighterlog:passage:366780000:2025-11-25T23:03:15ZUndaunted (Interlake Logistics Solutions) crossed Detroit River / Ambassador Bridge upbound on 25 Nov 2025 18:03 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Tue, 25 Nov 2025 23:03:15 GMThttps://freighterlog.com/log/port-huron/2025-11/freighterlog:passage:366780000:2025-11-25T16:02:08ZUndaunted (Interlake Logistics Solutions) crossed Port Huron / Blue Water Bridge downbound on 25 Nov 2025 11:02 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Tue, 25 Nov 2025 16:02:08 GMThttps://freighterlog.com/log/mackinac/2025-11/freighterlog:passage:366780000:2025-11-22T14:58:42ZUndaunted (Interlake Logistics Solutions) crossed Straits of Mackinac eastbound on 22 Nov 2025 09:58 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 22 Nov 2025 14:58:42 GMThttps://freighterlog.com/log/mackinac/2025-11/freighterlog:passage:366780000:2025-11-15T14:52:24ZUndaunted (Interlake Logistics Solutions) crossed Straits of Mackinac westbound on 15 Nov 2025 09:52 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 15 Nov 2025 14:52:24 GMThttps://freighterlog.com/log/mackinac/2025-11/freighterlog:passage:366780000:2025-11-10T10:44:50ZUndaunted (Interlake Logistics Solutions) crossed Straits of Mackinac eastbound on 10 Nov 2025 05:44 EST. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Mon, 10 Nov 2025 10:44:50 GMThttps://freighterlog.com/log/mackinac/2025-11/freighterlog:passage:366780000:2025-11-01T02:41:17ZUndaunted (Interlake Logistics Solutions) crossed Straits of Mackinac westbound on 31 Oct 2025 22:41 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 01 Nov 2025 02:41:17 GMThttps://freighterlog.com/log/mackinac/2025-10/freighterlog:passage:366780000:2025-10-31T14:12:28ZUndaunted (Interlake Logistics Solutions) crossed Straits of Mackinac eastbound on 31 Oct 2025 10:12 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Fri, 31 Oct 2025 14:12:28 GMThttps://freighterlog.com/log/mackinac/2025-10/freighterlog:passage:366780000:2025-10-29T17:46:50ZUndaunted (Interlake Logistics Solutions) crossed Straits of Mackinac westbound on 29 Oct 2025 13:46 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Wed, 29 Oct 2025 17:46:50 GMThttps://freighterlog.com/log/mackinac/2025-10/freighterlog:passage:366780000:2025-10-29T07:52:34ZUndaunted (Interlake Logistics Solutions) crossed Straits of Mackinac eastbound on 29 Oct 2025 03:52 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Wed, 29 Oct 2025 07:52:34 GMThttps://freighterlog.com/log/mackinac/2025-09/freighterlog:passage:366780000:2025-09-14T07:45:28ZUndaunted (Interlake Logistics Solutions) crossed Straits of Mackinac westbound on 14 Sep 2025 03:45 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 14 Sep 2025 07:45:28 GMThttps://freighterlog.com/log/port-huron/2025-09/freighterlog:passage:366780000:2025-09-12T02:40:26ZUndaunted (Interlake Logistics Solutions) crossed Port Huron / Blue Water Bridge upbound on 11 Sep 2025 22:40 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Fri, 12 Sep 2025 02:40:26 GMThttps://freighterlog.com/log/detroit-river/2025-09/freighterlog:passage:366780000:2025-09-11T17:31:55ZUndaunted (Interlake Logistics Solutions) crossed Detroit River / Ambassador Bridge upbound on 11 Sep 2025 13:31 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Thu, 11 Sep 2025 17:31:55 GMThttps://freighterlog.com/log/detroit-river/2025-09/freighterlog:passage:366780000:2025-09-07T21:06:53ZUndaunted (Interlake Logistics Solutions) crossed Detroit River / Ambassador Bridge downbound on 7 Sep 2025 17:06 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 07 Sep 2025 21:06:53 GMThttps://freighterlog.com/log/port-huron/2025-09/freighterlog:passage:366780000:2025-09-07T15:20:17ZUndaunted (Interlake Logistics Solutions) crossed Port Huron / Blue Water Bridge downbound on 7 Sep 2025 11:20 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 07 Sep 2025 15:20:17 GMThttps://freighterlog.com/log/mackinac/2025-09/freighterlog:passage:366780000:2025-09-04T15:52:49ZUndaunted (Interlake Logistics Solutions) crossed Straits of Mackinac eastbound on 4 Sep 2025 11:52 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Thu, 04 Sep 2025 15:52:49 GMThttps://freighterlog.com/log/mackinac/2025-08/freighterlog:passage:366780000:2025-08-19T16:35:35ZUndaunted (Interlake Logistics Solutions) crossed Straits of Mackinac westbound on 19 Aug 2025 12:35 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Tue, 19 Aug 2025 16:35:35 GMThttps://freighterlog.com/log/mackinac/2025-08/freighterlog:passage:366780000:2025-08-18T22:40:13ZUndaunted (Interlake Logistics Solutions) crossed Straits of Mackinac eastbound on 18 Aug 2025 18:40 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Mon, 18 Aug 2025 22:40:13 GMThttps://freighterlog.com/log/mackinac/2025-08/freighterlog:passage:366780000:2025-08-16T10:13:07ZUndaunted (Interlake Logistics Solutions) crossed Straits of Mackinac westbound on 16 Aug 2025 06:13 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sat, 16 Aug 2025 10:13:07 GMThttps://freighterlog.com/log/port-huron/2025-08/freighterlog:passage:366780000:2025-08-14T14:37:22ZUndaunted (Interlake Logistics Solutions) crossed Port Huron / Blue Water Bridge upbound on 14 Aug 2025 10:37 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Thu, 14 Aug 2025 14:37:22 GMThttps://freighterlog.com/log/detroit-river/2025-08/freighterlog:passage:366780000:2025-08-14T05:17:54ZUndaunted (Interlake Logistics Solutions) crossed Detroit River / Ambassador Bridge upbound on 14 Aug 2025 01:17 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Thu, 14 Aug 2025 05:17:54 GMThttps://freighterlog.com/log/detroit-river/2025-08/freighterlog:passage:366780000:2025-08-10T17:08:17ZUndaunted (Interlake Logistics Solutions) crossed Detroit River / Ambassador Bridge downbound on 10 Aug 2025 13:08 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 10 Aug 2025 17:08:17 GMThttps://freighterlog.com/log/port-huron/2025-08/freighterlog:passage:366780000:2025-08-10T11:32:34ZUndaunted (Interlake Logistics Solutions) crossed Port Huron / Blue Water Bridge downbound on 10 Aug 2025 07:32 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 10 Aug 2025 11:32:34 GMThttps://freighterlog.com/log/mackinac/2025-08/freighterlog:passage:366780000:2025-08-06T20:36:58ZUndaunted (Interlake Logistics Solutions) crossed Straits of Mackinac eastbound on 6 Aug 2025 16:36 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Wed, 06 Aug 2025 20:36:58 GMThttps://freighterlog.com/log/mackinac/2025-07/freighterlog:passage:366780000:2025-07-18T17:01:18ZUndaunted (Interlake Logistics Solutions) crossed Straits of Mackinac westbound on 18 Jul 2025 13:01 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Fri, 18 Jul 2025 17:01:18 GMThttps://freighterlog.com/log/soo/2025-07/freighterlog:passage:366780000:2025-07-18T05:45:22ZUndaunted (Interlake Logistics Solutions) crossed Soo Locks (St. Marys River) downbound on 18 Jul 2025 01:45 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Fri, 18 Jul 2025 05:45:22 GMThttps://freighterlog.com/log/soo/2025-07/freighterlog:passage:366780000:2025-07-17T20:01:05ZUndaunted (Interlake Logistics Solutions) crossed Soo Locks (St. Marys River) upbound on 17 Jul 2025 16:01 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Thu, 17 Jul 2025 20:01:05 GMThttps://freighterlog.com/log/mackinac/2025-07/freighterlog:passage:366780000:2025-07-17T08:15:09ZUndaunted (Interlake Logistics Solutions) crossed Straits of Mackinac eastbound on 17 Jul 2025 04:15 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Thu, 17 Jul 2025 08:15:09 GMThttps://freighterlog.com/log/mackinac/2025-06/freighterlog:passage:366780000:2025-06-29T03:47:04ZUndaunted (Interlake Logistics Solutions) crossed Straits of Mackinac westbound on 28 Jun 2025 23:47 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Sun, 29 Jun 2025 03:47:04 GMThttps://freighterlog.com/log/port-huron/2025-06/freighterlog:passage:366780000:2025-06-27T04:15:21ZUndaunted (Interlake Logistics Solutions) crossed Port Huron / Blue Water Bridge upbound on 27 Jun 2025 00:15 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Fri, 27 Jun 2025 04:15:21 GMThttps://freighterlog.com/log/detroit-river/2025-06/freighterlog:passage:366780000:2025-06-26T17:53:30ZUndaunted (Interlake Logistics Solutions) crossed Detroit River / Ambassador Bridge upbound on 26 Jun 2025 13:53 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Thu, 26 Jun 2025 17:53:30 GMThttps://freighterlog.com/log/detroit-river/2025-06/freighterlog:passage:366780000:2025-06-20T18:47:24ZUndaunted (Interlake Logistics Solutions) crossed Detroit River / Ambassador Bridge downbound on 20 Jun 2025 14:47 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Fri, 20 Jun 2025 18:47:24 GMThttps://freighterlog.com/log/port-huron/2025-06/freighterlog:passage:366780000:2025-06-20T05:59:08ZUndaunted (Interlake Logistics Solutions) crossed Port Huron / Blue Water Bridge downbound on 20 Jun 2025 01:59 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Fri, 20 Jun 2025 05:59:08 GMThttps://freighterlog.com/log/mackinac/2025-06/freighterlog:passage:366780000:2025-06-18T23:41:59ZUndaunted (Interlake Logistics Solutions) crossed Straits of Mackinac eastbound on 18 Jun 2025 19:41 EDT. Interpolated from AIS track samples and good to about ±15 minutes; a crossing of the FreighterLog chokepoint line, not an official lock record.Wed, 18 Jun 2025 23:41:59 GMT