Iron Hill Brewery & Restaurant recently closed three locations in the Philadelphia market, including its original brewpub in Newark, Delaware. Nation’s Restaurant News reports Iron Hill cited a “changing business landscape” for the closures. Its location at the Lehigh Valley Mall remained open for business as of Tuesday. Last year, Iron Hill closed its Phoenixville and Ardmore brewpubs. Its Lehigh Valley Mall location, in the mall’s lifestyle center, first opened last year.