Mountain Bike Action has nice article up on the McKenzie River trails in Oregon. It looks like a truly amazing place to ride. It is now on my bucket list of destinations to visit.
Seasoned riders will find this trail pure bliss if they are riding the right bike. Endless sights, river crossings and waterfalls punctuate this long singletrack with everything from cushy, pine-needle-covered trails to sections where rocks and roots combine in a battle to force you to dismount. There are no extended steep sections, but there are plenty of obstacles to keep you on your toes and out of the saddle. – MBA