In fact, Gary, our town's wonderful trails don't magically molt and remain darn spiffy year-round. Indeed, Gary, if you use them, you ought to do the socially responsible thing and help maintain them. Here is your chance: Friends of the M Trail and Run Wild Missoula will hold a volunteer M Trail maintenance day on Mount Sentinel. Volunteers are welcome to drop in for any amount of time. Crews will build a stair structure at switchback No. 6 on the trail and pull weeds in other areas. Lunch at noon. Volunteers who plan to attend during the lunch hour are asked to RSVP by calling (410) 353-1944.