# Martin marietta rock quarry
Ever want to run through a rock quarry? You can soon in Cumming
The Boulder Dash 5k/10k Race will be held on April 23Image by Forsyth County Chamber of Commerce. (Forsyth County, GA) The Martin Marietta rock quarry is opening its doors again for the 12th annual Boulder Dash 5k/10k Race on Saturday, April 23 at 8 a.m.