punch mine n.— «The museum is a history lesson of Wheatcroft’s rich coal-mining past.…Clark shows a picture of a stooped miner entering a punch mine.» —“Mining a father’s passion” by Garret Mathews in...
grit pit n.— «Grit pits are pits about 10-feet-by-10-feet wide that run under main sewer lines and catch debris filtered through the main line. The purpose of the plastic-walled pit is to collect debris that would normally accumulate...