Rocky Mountain National Park

Rocky Mountain National Park spreads across roughly 415 square miles of high country straddling the Continental Divide, the ridge line where rivers split to flow east or west. The park protects 72 named peaks above 12,000 feet, crowned by Longs Peak at 14,259 feet, along with glacial lakes, wildflower meadows, and vast stretches of alpine tundra. It is high everywhere, so days are cool, nights are cold, and the season runs late, with snow lingering in the high country long into the warm months.

The signature drive is Trail Ridge Road, the highest continuous paved road in any US national park, cresting above 12,000 feet. It carries you up through the life zones, from montane forest to the twisted, wind-stunted trees at timberline, and finally out onto the open tundra on the roof of the park. Up there, above the tree line, tiny cushion plants and wildflowers cling to the ground and survive fierce wind in a growing season measured in weeks. Because it climbs so high, the road is only open in the warmer months and closes when the snow arrives.

Below the tundra, the park is laced with hundreds of miles of trails, from easy strolls to alpine lakes to the long, exposed climb up Longs Peak. Glacial valleys like the Bear Lake area put stunning scenery within reach of a short walk, with lakes reflecting the peaks and meadows full of wildflowers in summer. This is also one of the best places in Colorado for wildlife, from elk and moose in the wetlands to bighorn sheep, marmots, and pikas up among the high rocks.

• Beaver Meadows Entrance, off US-36 near Estes Park, is open year-round and leads to the Beaver Meadows Visitor Center, the Bear Lake corridor, and the east end of Trail Ridge Road.
• Fall River Entrance, off US-34 near Estes Park, is open year-round and reaches the Horseshoe Park meadows and the climb up Trail Ridge Road, which is seasonal.
• Grand Lake / Kawuneeche Entrance, off US-34 near Grand Lake, is the quieter west side, open year-round, though the Trail Ridge Road link over the divide is seasonal and snow-dependent.
• From Denver and Boulder, follow US-36 northwest through Lyons to Estes Park and the east entrances, roughly a 70-mile drive from Denver. To reach the west side, come around on US-40 over Berthoud Pass and up US-34 to Grand Lake.

• Bear Lake is an easy 0.6-mile loop right along the water, with views up to Hallett Peak and Flattop Mountain. It is one of the most popular spots in the park and the trailhead for many longer hikes.
• Alberta Falls is a 1.6-mile round-trip hike to a 30-foot waterfall tucked into the forest, a rewarding walk that suits most abilities.
• The fall elk rut brings the park's most famous show: in September, bull elk bugle their haunting calls in Moraine Park and Horseshoe Park, most active at dawn and dusk. Watch from a safe distance and never approach the animals.
• Longs Peak is the park's only Colorado fourteener at 14,259 feet, a long and demanding 14-mile round-trip climb for experienced, well-prepared hikers only.

Long before it was a park, this high country was the homeland of the Ute and Arapaho peoples, who traveled and hunted through these mountains and valleys for generations. They followed game up to the high meadows in summer and knew the passes across the divide, and their trails and names are woven through the landscape. Their presence here reaches back far beyond the arrival of newcomers, and the mountains held deep meaning long before any road was ever imagined.

By the late 1800s, settlers, ranchers, and early tourists had found their way into the valleys around Estes Park, drawn by the scenery and the hunting. Among them was a young naturalist and writer named Enos Mills, who fell in love with these peaks and spent years guiding visitors, studying the mountains, and arguing that they should be protected for everyone. His tireless campaigning earned him the name the father of Rocky Mountain National Park.

The effort paid off in 1915, when Congress set aside this stretch of the Front Range as a national park. In the decades that followed, crews built the roads and trails that opened the high country to visitors, including Trail Ridge Road, completed in the 1930s to carry travelers up over the tundra and across the Continental Divide. The Civilian Conservation Corps worked here too, building trails and facilities during the Great Depression.

Today Rocky Mountain is one of the most visited national parks in the country, welcoming millions of people a year. Its popularity is part of why the park now manages summer crowds with a timed-entry system, working to keep this high wilderness both open to all and protected for the future.

• Trail Ridge Road tops out at 12,183 feet, making it the highest continuous paved road in any national park in the United States. For miles it runs above the tree line, where no forest can grow.
• The park protects 72 named peaks over 12,000 feet, but only one true fourteener: Longs Peak at 14,259 feet, whose flat-topped profile dominates the eastern skyline.
• About a third of the park sits above the tree line as alpine tundra, a fragile world so much like the far Arctic that scientists study it to understand climate at the poles.
• The Continental Divide runs right through the park, so a raindrop falling on one side eventually reaches the Atlantic while one just feet away flows toward the Pacific.
• Moose were not always common here; they expanded into the park's willowy west-side wetlands over the last several decades and are now a regular sight around the Kawuneeche Valley.
• The Colorado River begins its long journey in the park, rising as a small stream in the Kawuneeche Valley before flowing all the way to the desert Southwest.
• Tiny pikas, relatives of rabbits, live among the high rocks and spend their short summers gathering grass into hay piles to survive the long alpine winter.
• The gateway town of Estes Park is home to the historic Stanley Hotel, whose grand halls helped inspire a famous horror novel.

• An entrance fee applies (per vehicle, good for seven days); check the park website for current rates, and interagency annual passes are accepted.
• A timed-entry permit reservation may be required during the busy season, generally late spring through fall, in addition to the entrance fee. Reservations are booked through recreation.gov, so check the current rules before you go.
• Trail Ridge Road is seasonal, usually open from late spring through the middle of fall and closed the rest of the year when snow buries the high country.
• Bear Lake Road is the most popular corridor and parking fills early, so using the park's shuttle bus is recommended in the busy months.
• Wilderness permits are required for backcountry camping; plan and reserve ahead if you want to sleep out in the high country.

Yes. The park charges a per-vehicle entrance fee that is good for seven days, and interagency annual passes are accepted. Check the National Park Service website for the current rate before you go, and note that during the busy season you may also need a separate timed-entry reservation on top of the fee.

You may. During the busy season, generally late spring through fall, the park often requires a timed-entry permit reservation in addition to the entrance fee to manage the heavy crowds, and spots can fill quickly. The system and its exact rules can change from year to year, so check the current requirements on the park's official website and reserve ahead if you are visiting during the popular months.

Trail Ridge Road is seasonal because it climbs above 12,000 feet into deep-snow country. It usually opens in late spring, around late May, and stays open into mid-October, then closes for the winter once heavy snow arrives. Exact dates shift each year with the weather, and even in season the road can close temporarily for snow or storms, so check current conditions before you drive it.

The park is very high, with much of it above 10,000 feet and Trail Ridge Road cresting over 12,000, so the thin air affects many visitors. Altitude can cause headaches, shortness of breath, or altitude sickness, so take it easy when you arrive, drink plenty of water, and give your body time to adjust before any hard hiking. Come prepared with layers, because it is colder and windier up high than in the valley.

Mountain weather changes fast. Summer afternoons often bring sudden thunderstorms with lightning, which is dangerous above the tree line where there is no shelter, so start hikes early and plan to be off high, exposed ground by early afternoon. Snow can fall in any month up high. Bring layers, rain gear, sun protection, and water, and turn back if a storm is building rather than pushing on.

The fall elk rut is one of the park's great sights. In September, bull elk gather harems and bugle their haunting, echoing calls, most active at dawn and dusk in the open meadows of Moraine Park and Horseshoe Park. It draws crowds, so arrive early, stay in your car or well back, and never approach the animals; a rutting bull elk is powerful and unpredictable.

Summer, roughly late June through September, is the reliable window: Trail Ridge Road is open, the wildflowers are out, and the trails are mostly clear of snow, though this is also the busiest and most likely to need a timed-entry reservation. September adds golden aspens and the elk rut. Winter closes the high road but opens quiet trails to snowshoers and skiers for those prepared for the cold.

You can see a lot in a single full day: drive Trail Ridge Road, walk an easy trail like Bear Lake or Alberta Falls, and watch for wildlife in the meadows. To slow down, hike to a few alpine lakes, and explore both the east and west sides of the divide, give it two or three days. The high altitude also means it is worth not trying to do too much too fast.

Pets are very limited here. They are allowed in developed areas, parking lots, campgrounds, and along roads, but not on any trails or in the backcountry, so they cannot join you on hikes to the lakes or up the tundra. Keep pets leashed, bring water, and never leave one in a vehicle. Check the park website for the current pet rules before you visit.

There is no hotel-style lodging inside the park, but it has several campgrounds, some of which take reservations in the busy season, plus backcountry sites that need a wilderness permit. Most visitors base themselves in the gateway towns of Estes Park on the east side or Grand Lake on the quieter west side, both just minutes from an entrance and full of places to stay, eat, and resupply.