Rio Colorado
| Name | Rio Colorado |
| Type | Steamer
|
| GRT | 3,565 tons |
| Country |  British |
| Built | 1903
|
| Builder | W. Doxford & Sons, Ltd., Sunderland
|
| Operator | London-American Maritime Trading Co., Ltd (Petersen & Co., Ltd.), London
|
| History | Turret deck design.
|
U-boat attacks on Steamer Rio Colorado
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties |
| 1 | 22 Mar 1917 | UC 50 (Rudolf Seuffer) | Sunk | Mined 3/4 miles E or 1/2 mile ExN of the entrance to the Tyne
|
| La Plata - Tyne
| wheat
| 10
|
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