(Dufur, OR) -- The Boulder Fire southeast of Mt. Hood is now fully contained. The fire was kept to 233 acres. It was burning in timber, dead and down woody material in rugged terrain. A small team will remain on scene to watch for flare-ups. The cause of the fire is under investigation and the Forest Service is asking anyone who was in the area on July 8th to report if they saw something suspicious or have video or photos that might help with the investigation.