4 Best Sights in Trail Ridge Road, Rocky Mountain National Park

This is a tough hike, but it comes with great views of the park's eastern lower valleys. It's about 3½ miles one way, including a 2,874-foot gain in elevation to the summit of Ypsilon Mountain (elevation 13,514 feet); you pass the summits of Mt. Chapin and Mt. Chiquita on the way. From the trailhead, the path heads downhill to Chapin Creek. For a short distance after leaving the trailhead, keep a sharp eye out to the right for a less obvious trail that heads uphill to the tree line and disappears. From here head up along the steep ridge to the summit of Mt. Chapin. Chiquita and Ypsilon are to the left, and the distance between each peak is about 1 mile and involves a descent of about 400 feet to the saddle and an ascent of 1,000 feet along the ridge to Chiquita. From Ypsilon's summit you'll look down 2,000 feet at Spectacle Lakes. You may wish to bring a topo map and compass. Difficult.

The Discovery Room, which houses everything from old ranger outfits to elk antlers, coyote pelts, and bighorn sheep skulls for hands-on exploration, is a favorite with kids at this visitor center.

The remains of a few cabins are all that's left of this onetime silver-mining town, established around 1880. Reach it by hiking the 3.6-mile Colorado River Trail. Look for wagon ruts from the old Stewart Toll Road and mine tailings in nearby Shipler Park (this is also a good place to spot moose).

More than 100 years old and never more than 14 feet wide, this road stretches from the park's east side to the Fall River Pass (11,796 feet above sea level) on the west. The drive provides a few white-knuckle moments, as the road is steep, serpentine, and lacking in guardrails. Start at West Horseshoe Park, which has the park's largest concentrations of sheep and elk, and head up the gravel road, passing Chasm Falls.