Fire officials expect to complete mopping up the Riley and Horseshoe Fires in the Mt. Adams Complex on Friday.  The complex is now 83 percent contatined.  Washington Incident Management Team commander Brian Gales says firefighters are working to establish a good perimeter around the Riley Fire, with the rugged terrain slowing progress.  The 63-acre Riley Fire is the focus of three firefighting crews that are mopping up abundant hot spots throughout the burned area.  The crews are finding them, spraying water over charred logs and turning over smoldering duff.  One crew and a faller group remain at the Horseshoe Fire to seek out and mitigate remaining heat.  A crew has been identified for initial attack on any new fires.  The Spiral Fire, which burned an acre of timber in the Big Lava Bed 15 miles west of the Complex Sunday, was also suppressed by firefighters from the incident and Mt. Adams Ranger District.