 Rocky Mountain News Network. I'm Kristen Thober. A wildfire near Beulah has grown to more than 1000 acres in size and is forcing mandatory evacuations for those in Middle Creek Canyon. That fire believed to have been caused by lightning spread from Pueblo County over the Custer County line. A big concern is that a watershed that feeds Beulah is in the path of the fire. If the fire spreads that far, it could cause bigger issues.