The unique outcropping, also known as the Duckbill, has long been a popular destination for tourists visiting Cape Kiwanda park on Oregon’s Pacific coast.
Officials had at first believed that the coastal sandstone pedestal had naturally eroded.
But they are currently re-evaluating that assessment after being shown the video by David Kalas, a visiting beachgoer.
Mr Kalas said that up to eight people participated in toppling it a week ago, but that five had walked away when the remaining group stayed to push it over.
“We confronted them and they said it was a safety hazard,” said Mr Kalas, who had gone there to film a summer holiday video with friends.
“They said one of their friends had broken a leg on it. It’s like their weird revenge thing”, he added.
Police and parks officials will meet on Tuesday to discuss possible criminal charges.
If these folks did tip over the rocks, it’s an incredibly douchey thing to do, but criminal charges? They tipped over rocks…