The 1945 forest fire season was a busy one, but acreage was minimal comparison to other years. The McClure Forest Fire was the largest in Lassen County for that year. The fire was spotted at 4:00 p.m. Sunday, September 2, 1945, just south of Big Jacks Lake. It spread quickly, fanned by hot dry winds. As the Fruit Growers Supply Company had two railroad logging camps in the area—Harvey and Stanford—with in no time they had 750 men on the fire line. The Lassen National Forest dispatched a crew of 50. Three days later the fire was contained. In all, 5440 acres was consumed, 4000 of which was virgin timber.