Since the mid-1850s when coal-fired, reciprocating-engined steamboats were first heralded as a swift and reliable method of freight transportation, these majestic vessels have criss-crossed the Great Lakes transporting everything from coal to iron ore and cement. Until the advent of the diesel locomotive engine, the speed and efficiency of the lake freighters was unchallenged. Today, however, the massive fleet has been reduced to a handful, and soon may be extinct.