pit run

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Noun1.pit run - gravel as found in natural depositspit run - gravel as found in natural deposits
crushed rock, gravel - rock fragments and pebbles
References in periodicals archive ?
Contract Awarded for 4 Number Gravel Stone, Stone Dust, Move 2 Number Gravel, Pit Run Materials Procurement of Works.
The shaft collapse occurred in a coal mine pit run by the Xinjiang Tianshan Coal and Power Co.
The forty-three-acre site is divided into areas for aggregate processing, asphalt sales, pit run gravel, and clean material disposal.
There were lots of big rocks and pit run to bore in and through.