Rocky Mountain National Park
Rocky Mountain National Park’s 415 square miles encompass and protect spectacular mountain environments. Trail Ridge Road crests at over 12,000 feet and includes many overlooks to experience the subalpine and alpine worlds. There are over 300 miles of hiking trails with spectacular mountain scenery, wildflowers and wildlife.
Emerald Lake Trail is a reasonable short hike (3.2 miles round trip, 698 feet elevation gain.)
Black Lake Trail is a more demanding hike (9.7 miles round trip, 1,642 feet elevation gain.) On the way to Black Lake, you pass by Mills Lake, Jewel Lake, and Ribbon Falls. Part of this is along the Glacier Gorge Trail.