A bride and groom mountaineer pair scaled a sheer cliff in full wedding garb to hold their ceremony on top of a 900 foot rocky outcrop in the US.

Photos of them have become a hit online, with more than 500,000 views.

Even the bride's mother made the climb.

Bob Ewing proposed to Antonie Hodge Ewing in March as the couple scaled the Seneca Rocks in West Virginia, and after she said yes, she said she wanted to get married there as well.

The family pitched in. Brother Scott Ewing got himself ordained and performed the ceremony. Another brother, John Ewing, made a separate climb and photographed the ceremony with a high-powered lens.

Antonie Hodge Ewing made the climb in her mother's wedding gown. Her mother, Evangeline Hodge, made it up the rocks as well.

"I had to prove to myself I could do it," said Evangeline Hodge, a novice climber who refused permission to print her age. "I did it for all the old people out there."

Initially, the plan was for immediate family and some close friends to all make the climb, Antonie said. But it became unwieldy, and they had to cut most everyone from the climbing party.

"We didn't have a lot of space. It's a small mountain top," she said.

Family and friends who couldn't make the August 11 climb participated in a second ceremony and reception the next day.

Arthur Kearns, owner of the Seneca Rocks Climbing School, said people have occasionally got married at the peak, but he was not aware of anyone doing it in formal attire.

Mr Kearns planned himself to get married at the peak 19 years ago, "but the minister tapped out ... about 200 feet off the ground," apparently afraid of heights.