Winter Park Resort opens up their trails in the off-season. There's over 25 miles of trail that traverse the mountain and offer hikers and mountain bikers an amazing area to explore.
To get to Winter Park Resort from all points around the Denver area, find your way to I-70 heading West out of Denver. Follow I-70 West approximately 40 miles to Exit 232 to Winter Park, Empire and Granby. Follow Exit 232 onto Hwy 40 which will take you over Berthoud Pass (great photo ops) and to Winter Park. Mileage from Exit 232 to Winter Park is approximately 24 miles. Total mileage from Denver is 67 miles.
http://www.tripleblaze.com/trail.php?c=3&i=128