Sarah Spencer is ATB

The Sarah Spencer, here to load taconite, is a unique combination of nautical parts. The Sarah Spencer barge (formerly the hull of the laker Adam Cornelius) has a notch at one end into which the tug Jane Ann IV fits. The combination is officially designated as an articulated tug barge or ATB, for short.
*submitted to the Duluth News Tribune for publication on 09-09-2004
Kenneth Newhams :