Stateline Complex fires grow to 3,600 acres MTN and last updated 2021-07-27 16:50:29-04 ST. REGIS â The Stateline Complex fires burning outside of St. Regis are continuing to see growth and have now burned 3,635 acres. Fire managers caution that the area surrounding the Stateline Complex may observe increased smoke Tuesday due to higher relative humidity and cloud cover. Areas of unhealthy Air Quality will be observed throughout the day and may worsen slightly into Wednesday. The blazes continued to experience moderate fire behavior on Monday and the same is expected to last through Tuesday. The Stateline Complex showed active fire behavior earlier in the day on Monday due to drier temperatures and lower relative humidity. Group torching, short runs, and spotting began around mid-day and lasted through the evening.