Constructed and opened last year, this little-known gem runs from Pence Park, between Indian Hills and Evergreen, to Lair o' the Bear Park, outside of Idledale. Along the way, it cuts through two other Denver mountain parks, Corwina and O'Fallon. Unlike many of the trails along the Denver-area Front Range, Bear Creek is not just a jumble of rocks. It more resembles the Buffalo Creek Trail that runs along the Colorado Trail to the city's southwest: a smooth, wide, hard-packed-dirt single track, with lots of roller-coastery dips and climbs. If you want to get the hard part out of the way first, take C-470 to Morrison and climb up the canyon to Lair o' the Bear. Start grinding at the west end of the parking lot.