On the Great Salt Lake last Friday, there was a great collision.

Adjacent to Utah’s Antelope Island State Park, at the lake’s southeast corner, jagged fragments of ice moving smoothly on the water’s surface hit a veritable wall.

The resulting scene, captured on video (above) by a park official, is an amazing (and noisy) spectacle.

The icy shards, pushed up the lake’s Farmington Bay by southerly winds, crash into a rocky causeway and into one another. Stacks of ice mount along the sloped shore, and some pieces slide back down into the water.

“It [the ice] looks alive,” said the park’s Facebook page.

How did this happen?

The ice initially formed as freshwater from the Jordan River flowed into the salty bay and froze on the surface, according to the park’s Facebook page.

Then, as an area of low pressure approached from the west on Friday, southerly winds drove the ice up the bay toward the causeway where the collision occurred.