The flat, scenic loop around Wonderland Lake is a great place for easy runs or a launching off point for longer, traffic-free trail runs.

Wonderlake Lake/Foothills Trail

February 15, 2019 Comments Off on Mt. Sanitas Trail/Lion’s Lair Loop Boulder Running Routes, Run Of The Week

Mt. Sanitas Trail/Lion’s Lair Loop

Central Boulder

Lions Lair Trail
Dogs:Yes, but not on the Lion’s Lair trail
Bathrooms:Yes, at Centennial Trailhead
Getting There:The Centennial Trailhead is located on Mapleton Avenue about 1/3 of a mile west of 4th Street. If the trailhead parking lot is full, park along Mapleton or 4th Street instead.

The routes up 6,863-foot Mt. Sanitas are among Boulder’s most popular trails, and rightly so.Each is a scenic and strenuous run that winds up at the top of our favorite local mountains.There are three main options from base of the mountain on Mapleton Avenue: the steep, rocky 1.3-mile route up the Mt. Sanitas Ridge to the top of the mountain; the 1-mile smooth dirt road route up Sanitas Valley Trail and the 1-mile rocky single-track route up Dakota Ridge Trail that connect with the steep, rocky 0.6-mile East Ridge Trail that heads to the summit. The other trail option out of the Centennial Trailhead is the 3.8-mile route to the Mt. Sanitas summit by combining Sunshine Canyon Trail with Lion’s Lair Trail. Each of the routes to the top climbs 1,340 feet, but the Sunshine/Lion’s Lair route is the most gradual and consistently runnable.

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