Bike-mad Portland isn't just prime cyclocross and road-riding territory. Beyond the city limits, killer singletrack abounds. Tops on our list? Mount Hood, the sprawling, 11,249-foot sleeping volcano just an hour outside town. Circumnavigate the big guy on a four-day hut-to-hut trip starting in Hood River. Days are spent covering up to 40 miles of singletrack and logging roads in the million-acre Mount Hood National Forest and gawking at the views of Hood, Adams, St. Helens, and, on a clear day, Rainier. Your digs, courtesy of the Cascade Huts system, are rustic cabins in the forest. The huts are stocked with pasta, plus sleeping pads and bags (tip: bring a liner). By the time you reach Hood River again, you'll be ready for some smooth road ridingand a burger and beer at the Full Sail Pub.