Cooler weather on Monday helped firefighters continue to build and improve containment lines on the Boxcar and Jack Knife Fires.  Estimated containment for the Boxcar Fire has increased to 60% and for the Jack Knife Fire to 80%.  The Boxcar Fire is now 99,500 acres in size, with more than 100 miles of containment line on the fire being monitored by firefighters who mop-up hotspots as they are found.  Emphasis is still being directed in the Deschutes River Canyon, where steep, rocky, inaccessible terrain is a challenge for firefighters in this area.  On Monday afternoon some active fire between Highway 197 and Bakeoven Road was suppressed with helicopter water drops, but smoke in the fire area was minimal in comparison to past days, with a few sources well within the fire’s perimeter.  The Jack Knife Fire remains at 14,772 acres.  Firefighters continued to search for hotspots yesterday, but little to no heat or smoke was found within the fire perimeter.  Fire officials say this will be a relatively benign weather day, with opportunity to complete firefighting tasks.