Police in Robeson Township said the trio wandered onto the H&K Group's Birdsboro Quarry on Hay Creek Road at around 3 p.m. on Saturday, Nov. 12.
They're wanted in connection with a vandalism and public mischief investigation, the department said.
Anyone with information is asked to call Robeson police at 610-582-4276 or submit a tip anonymously on the Berks County Crime Watch webpage.
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