Crews contained a fire west of Dufur late Saturday afternoon at 31 acres.  The Oregon Department of Forestry says the Jewel Road Fire was reported Saturday at 4:30 p.m. in grass and brush on ODF protected lands.  The fire burned on rolling hills through grass and brush beneath an overstory of pine and oak trees, and was contained late Saturday night.  The cause of the fire is under investigation.  A single-engine air tanker with the Washington Department of Natural Resources flew in from Dallesport and dropped one load of retardant and three loads of water onto the fire.  ODF responded with four engines and a bulldozer, and four additional engines were supplied by the U.S. Forest Service and a rural structural protection district.