(Dufur, OR) -- Firefighters are making progress preventing the Boulder Fire southeast of Mt. Hood from growing. New mapping shows 237 acres have burned. The terrain is steep and the fire is burning in timber, dead and down debris. Firefighters are making good progress clearing previously built roads and containment lines. Three helicopters and four planes are dropping water to help ground crews. Campgrounds in the area remain evacuated. Weather is warm and dry, but gusty winds that were forecast on Monday didn't cause the fire to expand.