MARANA - Crews from Northwest Fire are battling a fire at Vulcan Materials at 10000 Avra Valley Rd. in Marana.
The fire is burning in or near an oil heater on the property. News 4 Tucson viewers report seeing smoke from miles away.
From their website, Vulcan materials reports it is North America's leading producer of construction aggregates---primarily crushed stone, sand and gravel.
Photo Courtesy: Captain Adam Goldberg, Northwest Fire