The Madison river near Ennis MT Gorges up every winter when it's cold enough. The river freezes up from Ennis lake from the bottom up and the whole river turns to ice and follows the river any of the river that don't freeze comes over the bank there is Ennis park were the river flooded over the bank and covers the ball field with ice. Interesting to see only a few rivers in the world do this I been told.
A link with info about it.
A few photo's I took today from the cell phone.
Diving over the bridge when I took this photo
From Ennis park MT the river never this high but with it turning to solid ice it raises all most touching the bridge.