BILLINGS, Mont. (AP) - Billings city officials say more boulders could tumble down from a cliff side where a rock slide recently took place.
The Billings Gazette reports geologists and engineers are visiting the site to determine which areas are still at risk and what work can be done to secure them.
Battalion Chief Jason Lyon estimates that between 100 and 150 yards (91 and 137 meters) of cliff face broke away Tuesday night from the Rimrocks, geological rimrock sandstone formations surrounding parts of Billings, and came crashing down into a neighborhood.
Billings City Engineer Debi Meling said Wednesday that an initial survey shows that at least two sizable chunks of cliff face, on either side of the slide area, remain compromised.
Neighborhood residents have been asked to leave, but the evacuation is not mandatory.
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Information from: The Billings Gazette, http://www.billingsgazette.com
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