Instead of a tiny tanker, be the first thing I saw over the hill was the deck cranes of ocean-going vessel FEDERAL MONTREAL...
The FEDERAL MONTREAL was inside the lock, while the Polsteam vessel IRMA was tied to the upper wall (west side).
Much to my surprise, the tug actually helped push the huge cargo ship FEDERAL MONTREAL off to the sidewall and out of the shipping lane.
All in a day's work for the mighty little tugboat.
Got to feel like a little kid watching a big red ship go through the locks...
After assisting the freighter, the AMY LYNN D cruised through the locks and upriver towards her next assignment.