Sparks from a cutting torch started the Swenson Fire on April 6 near Aspermont .
Sparks from a cutting torch burned 122,500 acres ( 496 km ) in King , Knox , and Stonewall counties but caused minimal structure damage .
Sparks from a cutting torch started the Swenson Fire on April 6 near Aspermont and burned 122,500 acres ( 496 km ) in King , Knox , and Stonewall counties but caused minimal structure damage .