simple past tense and past participle of runch

A surname. / A small town, the county seat of Westmoreland County, Virginia, United States.

A city, the county seat of Jasper County, Indiana, United States, named after James Van Rensselaer. / A village in Ralls County, Missouri, United States, named after the nearby Rensselaer Academy.

(geology, rare) The formation of anthracite.