But when these routes do clear, usually by late May, it’s the best time to see areas alive with wildflowers, creeks flowing with all that snowmelt and incredible mountain vistas. Before heading out, be sure to check that conditions along these spectacular routes are good for a drive.
Trail Ridge (U.S. 34): This road through Rocky Mountain National Park is the highest continuous auto road in the country. It’s truly an all-American icon — the road itself is listed on the National Register of Historic Places. Along 48 meandering miles, you can catch views of glacier-carved valleys, daunting peak summits and distant crystalline lakes and cross the Continental Divide.
Conditions: nps.gov or 970-586-1222
Independence Pass (CO 82): With a summit at 12,095 feet, the pass connects Twin Lakes and Aspen during the summer months. Known for its expansive views, more fourteeners (peaks that stand more than 14,000 feet above sea level) can be seen from this spot than any other place in the state, including three of the five tallest: La Plata Peak, Mount Massive and the tallest, Mount Elbert.
Mt. Evans (CO 5): The highest paved road in North America leads to the summit of Mount Evans. Just off I-70 near Idaho Springs, the road climbs up to 14,258 feet above sea level. At the top, turquoise-hued lakes, towering granite walls and stands of ancient bristlecone pine paint a beautiful picture. But the real draw is the mountain goats and bighorn sheep that can often be found scampering around this alpine paradise.
Kebler Pass (C.R. 12): This gravel road linking Crested Butte and Aspen follows Coal Creek and traverses numerous meadows saturated with wildflowers; in fall, countless aspen groves blaze with various hues of gold. Part of the West Elk Loop Scenic and Historic Byway, the road passes by old mining camps and through the mountain towns of Redstone and Carbondale.
Boreas Pass (Forest Road 33): Once a Ute Indian trail, then a narrow-gauge railroad pass linking Denver and Leadville during the 1880s silver boom, Boreas Pass is now an outlet to popular hiking and biking trails. An abandoned section house, cabins and railroad relics are reminders of its railroad past. Access to this gravel route can be found just south of Breckenridge.
Cottonwood Pass (Chaffee C.R. 306/Gunnison C.R. 209): Heading down Cottonwood Pass Road west of Buena Vista, two behemoth 14,000-foot peaks, Mount Princeton and Mount Yale, tower around you. As you pass beneath the two majestic giants, part of the Collegiate Peaks range, you’ll enter one of Colorado’s most aspen-laden valleys.
OTHER SCENIC PASSES
Many of Colorado’s other beautiful mountain passes stay open and plowed year-round, weather permitting. They should also be on any scenic-drive checklist when they’re decked out in spring’s finery.
Kenosha Pass (U.S. 285): Known as one of the Colorado Trail’s easiest access points, the pass is also a favorite for its views into the sprawling, green South Park Valley near Fairplay.
Cameron Pass (CO Hwy. 14): This route offers views into the wildlife-rich basin of North Park, which has changed little in the 120 years since the nearby town of Walden was established.
Shrine Pass (Forest Road 709): In summer, this route near Vail dips drivers into meadow after meadow blanketed with wildflowers.
Rabbit Ears Pass (U.S. Hwy. 40): This pass near Steamboat Springs is the best place to view the extraordinary rock formation it’s named for. The Rabbit Ears served as a distinct landmark to settlers and trappers of yore.
Photo: Trail Ridge Road through Rocky Mountain National Park.