Toil the soil

  • Published
Master Sgt. Robert Nightingale separates sieves of soil for weighing to ensure the proper percentage of material in each sieve meets construction specifications at a forward-deployed location. Nightingale, deployed from Malmstrom Air Force Base, Mont., is assigned to the 819/219th Expeditionary Red Horse Squadron. Red Horse squadrons are mobile heavy construction units. (Photo by Tech. Sgt. Deb Alvarado)