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AMERICAN FORK, Utah (AP) -- Crews plan to blast away a 30-foot slab of protruding limestone near the outside of Utah's popular Timpanogos Cave.
The blast is scheduled for some time between 11 a.m. and 2 p.m. Tuesday.
The operation is intended to eliminate the risk that the slab will fall on visitors near the cave's exit. Part of the overhang is directly above the cave's sheltered exit.
Officials at Timpanogos Cave National Monument wanted to make sure the blasting is done before the cave opens for the season on May 8.
Cave officials are also planning to build a new set of stairs and a sturdier roof near the cave's exit.
(Copyright 2010 by The Associated Press. All Rights Reserved.)