So-called "bungee jumping" and rappelling from a 70-foot-high tower at the Cache County fairgrounds was stopped this week by Logan and Cache County officials.

They want the owner and designer of the Sports Tower, Stan Checketts, to come up with $1 million in liability insurance as protection against a lawsuit in the event of an accident.The tower had been used by thrill-seekers since early August. But Monday, Cache County Attorney Gary McKean said the thrills must stop until terms in Checketts' contract with the fairground were met.

Checketts said Friday he believed he was meeting the contract by having participants sign a liability waiver, but McKean said that wasn't enough.

"Alerting patrons of possible dangers does not suffice because we need to be sure the city and county, who jointly own the fairgrounds, are not liable in case of accident or injury," he said.

Checketts said he hopes to find a company to insure his business so he can remain at the fairgrounds until he finds another location or prepares land he owns south of Logan.

Checketts, who owns a local cabinet-making firm, said he built the tower after extensive travels convinced him of the popularity of the heart-stopping sport.

He said he plans to market the towers in several other cities.

Bungee jumping derives its name from the thick elastic cord participants use to halt their plunge.

Checketts said that, at his tower, jumpers are fitted with a cord according to their weight. It is attached to a harness and they sit backward on the tower.

At end of a countdown, the jumper pushes off and plunges until the stretching cord slows and eventually stops the fall, springing the jumper back into the air.

Checketts said a large air bag is positioned at the base of the tower as a safety measure.

Checketts said a wide variety of people visited the tower before it was closed.