Indiana Limestone Co., which has mined slabs of stone for the Empire State Building and the Pentagon, filed for bankruptcy after struggling to repay a $53 million loan, Dow Jones Daily Bankruptcy Review reported today. Officials put Indiana Limestone into chapter 11 protection yesterday while they look for buyers who could top a $26 million lead offer for the company's quarries, which cover more than 4,000 acres and are expected to produce more than 100 years' worth of limestone.
