Thanks to only a little elevation gain, this 7-mile loop offers flatlanders great rewards (big views, wildlife, solitude) without much suffering. Pack plenty of water and sunscreen.

Rushing waterfalls, mountainous views, and a healthy dose of altitude highlight this 6.3-mile loop in Rocky Mountain National Park.

This 5.9-mile loop is great for eager flatlanders who are acclimating to the thin Rocky Mountain air.

Following an ancient glacial retreat, this 13.5-mile out-and-back on the East Inlet Trail traverses moose country toward a couple of lonely alpine lakes.

Go counterclockwise on this 10.2-mile loop touring the rocky cliffs and odd-shaped boulders of Lumpy Ridge to an alpine lake and several campsites in Rocky Mountain National Park.

Wander through lush forests and high-alpine meadows to a pair of secluded mountain lakes nestled at the foot of the Mummy Range.

This 18.8-miler follows the North Inlet through aspen groves, spruce stands, and marshland (feeding grounds of bugling elk) to a campground tucked beneath the Continental Divide.

Connect subalpine waterfalls, gurgling creeks, and overlooks above Wild Basin on this 5.3-miler in Rocky Mountain National Park.

Amble along rushing creeks, waterfalls, and lichen-covered rock outcroppings on the way to a secluded alpine lake in Rocky Mountain National Park's Wild Basin.

Summit a lesser-traveled 13,000-foot peak, then catch some summer alpine fishing at Timber Lake on this 13.4-mile out-and-back.