McGregor Lake is an argillite stone quarried from a large rock formation in Northwest Montana. This quarry produces a highly attractive stone consisting of golds, browns and grey tones with exciting dendrite fern patterns.

Stone Thickness & Size Range

Thickness: choose 2-3″, 3-4″, 4-5″ thick
Face Values: Gauged Heights – 2″ up to 6″ high x 3-18″ long