MOOSE, Wyo. (AP) — A replica of the historic Menor's Ferry is back in operation at Grand Teton National Park.

The ferry is located just north of the Craig Thomas Discovery and Visitor Center.

Park ranger naturalists offer free ferry rides daily.

Menor's Ferry consists of a platform deck set upon two pontoons for flotation. The ferry is tethered to a cable system that spans the river and operates by directing the pontoons toward the opposite riverbank, allowing the current to push the craft across the river.

The vessel has had its problems, though. It sank in the Snake River last year when park staff put the ferry into the river. In the 1980s, the ferry broke free on a ranger-led program, and passengers had to be rescued.