Freighter and Mules in Panama Canal Gatun Locks - Stock image
Central America, Colon - Panama, Container Ship, Freight Transportation, Mode of Transport
'Colon, Panama - December 27, 2009: Freighter and Mules in Panama Canal Gatun Locks. A large cargo ship can be seen in one of the locks in the background with a Panama ''Mule'' providing lateral and forward control for the ship in the narrow lock. Cargo containers can also be seen on the ship.'