Evolution Bike Park offers 21 lift served trails with 12 of those designated for down hill only. The breakdown of these gravity trails are 3 green, 2 blue, 6 black, and 1 double black.
There newest trail that went in this year was their double black line called Captain Jack. This trail is what I would call an old school DH trail. With flat corners, off camber roots, and a gnarly descent it will remind you more of a renegade trail than a bike park; definitely one of my favorites.
Two new trials from last season are also bringing the heat. Crusader and Woods are riddled with free-ride features, g-pulling berms and a large jump line. It takes a short pedal out from the main pack of trails and dumps you out on the North side of the resort. Even so, it's worth a few strokes to hit these trails and the return to the resort is all down hill, plus there is no trail traffic to contend with.
There are still a bunch more trails on the front side. Psycho Rocks is a visible from the lift(you'll know when you see it), Time Line, Time Table, and Avery are all super sick trails, again with a great variety of features. The hardest part of the day at Evolution was picking which trail to ride.
Currently Gravity logic has returned to Snowmass with two more trails in the works. A new green flow trail and a blue progressive trail. The idea behind these type of trails is to reach a broader spectrum of riders, allowing them to hone their skills on more moderate trails before jumping into the gravity spectrum.