This is a very easy, very flat 2 mile loop. It does pass through some pretty forests, though.
From Denver, head south on Hwy 285 to Hwy 73 in Conifer. Head north on Hwy 73 for 1 mile to the parking area on the left at the first entrance. Ride the connector trail up to the main loop.
http://www.tripleblaze.com/trail.php?c=3&i=630