Lake Portage
| Name | Lake Portage |
| Type | Steamer |
| GRT | 1,998 tons |
| Country |  American |
| Built | 1898 |
| Builder | McDougall-Duluth Co., Duluth, MN |
| Operator | U. S. Shipping Board, Duluth |
| History |
U-boat attacks on Steamer Lake Portage
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 3 Aug 1918 | UB 88 (Reinhard von Rabenau) | Sunk | 4.5 miles S of Audierne, Brittany | 47° 56'N, 4° 44'W | Montreal - Nantes | 3 |
Position of attack on Lake Portage
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