(Dufur, OR)  --  Firefighters are working to contain two wildfires in North Central Oregon.  The Rattlesnake Fire on the Warm Springs Reservation has burned one-thousand acres of grass.  Firefighters saved two houses from the blaze.  The Wrentham Market fire is burning near Dufur.  It has burned 10-thousand acres and is 38-percent contained.  Between 70 and 100 residents have been evacuated.  The causes of both fires are under investigation.