Rocky Mountain National Park Guide: Timed Entry and Trail Ridge

Rocky Mountain National Park in northern Colorado required timed-entry permits in 2026 from May 22 to October 13 for most of the park (9 a.m. to 2 p.m.) and to October 19 for the Bear Lake Road corridor (5 a.m. to 6 p.m.). Permits cost only a $2 Recreation.gov fee on top of the entrance fee of $30 per vehicle per day or $35 for 7 days. Trail Ridge Road, which crosses the Continental Divide at 12,183 feet, is usually open from late May to mid or late October.

The park is about 1.5 hours from Denver International Airport. Base yourself in Estes Park on the east side for the Bear Lake trails, or in Grand Lake on the quieter west side.

How does the Rocky Mountain timed entry system work?

The park sells two kinds of permits, both only on Recreation.gov and not at entrance stations. Each gives a 2-hour window to enter, with no set exit time. The rules below are those announced for 2026 on the park’s timed entry page; 2027 rules are usually announced in winter.

• Release schedule: permits for each month went on sale at 8 a.m. Mountain time on the first day of the previous month (May 1 for May 22 to June 30, June 1 for July, and so on). In recent seasons, an additional batch has also been released at 7 p.m. the evening before each date.
• Cost: $2 per permit, plus the entrance fee or a valid pass.
• Without a permit: you can enter the rest of the park before 9 a.m. or after 2 p.m. For Bear Lake itself, visitors without a corridor permit have usually relied on the park shuttle from the Park and Ride; check the current shuttle rules.
• Exceptions: in past seasons, visitors with park campground reservations or wilderness permits did not need a separate timed-entry permit. Check the current list before you go.

For how this compares with other parks, see our list of national parks that require reservations.

How much does Rocky Mountain National Park cost?

Since January 1, 2026, Rocky Mountain has been one of 11 parks that charge non-US residents the extra $100 fee. The $250 nonresident annual pass waives it.

When is Trail Ridge Road open?

Trail Ridge Road (US-34) runs 48 miles between Estes Park and Grand Lake, with about 11 miles above treeline, and its highest point is 12,183 feet, making it the highest continuous paved road in the US. It usually opens around Memorial Day weekend and closes for the winter in mid to late October, though snow can close it for hours or days at any time.

• Old Fall River Road, a one-way gravel road uphill to the Alpine Visitor Center, is open to vehicles from about early July to early October.
• Bear Lake Road is open all year, with snow and ice possible from fall to spring.
• The park posts updates on its park roads page and a 24-hour Trail Ridge Road status line at (970) 586-1222.

As of October 6, 2026, the park listed Trail Ridge Road as open to through travel. By November it is normally closed beyond Many Parks Curve on the east side and the Colorado River Trailhead on the west.

What are the best hikes in the Bear Lake corridor?

The Bear Lake corridor is the park’s busiest area, with a dense cluster of short and medium hikes to alpine lakes and waterfalls.

Parking at Bear Lake often fills early in summer even with permits. The park’s shuttle from the Park and Ride on Bear Lake Road serves the trailheads in season and is the easiest way to do a one-way hike, such as Bear Lake down to Glacier Gorge.

What about Indian Peaks and Rainbow Lakes nearby?

The Indian Peaks Wilderness, managed by the Arapaho and Roosevelt National Forests, borders the park to the south and has similar alpine scenery with no national park timed entry. Rainbow Lakes, west of Nederland, is a string of small lakes reached by a short trail from the Rainbow Lakes Trailhead at the end of a rough dirt road; a standard car can usually make it in dry conditions, but check road status with the Forest Service. The Arapaho Glacier Trail starts at the same trailhead.

The more popular Brainard Lake Recreation Area, also in the Indian Peaks, has required its own timed-entry reservations in recent summers. Nederland is about an hour south of Estes Park on the Peak to Peak Highway (Colorado 72). Wilderness rules apply in Indian Peaks: group size limits, dogs on leash and camping restrictions near lakes.

Should you stay in Estes Park or Grand Lake?

Grand Lake sits beside Colorado’s largest natural lake and is a good second base if you drive Trail Ridge Road. For more options, see our best mountain towns in Colorado.

What should you know about altitude, lightning and wildlife?

• Altitude: much of the park is above 8,000 feet and Trail Ridge tops 12,000. Drink extra water, take the first day easy and descend if you get a severe headache, nausea or confusion.
• Lightning: summer thunderstorms build most afternoons. Start early and be below treeline by early afternoon.
• Wildlife: elk gather in Moraine Park and Horseshoe Park during the fall rut in September and October. Keep a wide distance, stay near your car and never feed animals.
• Cold: temperatures above treeline can be 20 degrees cooler than in Estes Park, with wind; carry a warm layer in July.

When is the best time to visit?

Late June to September is best for open roads and hiking, with wildflowers peaking in July above treeline. Mid-September to early October brings golden aspens and the elk rut, with timed entry still in place. Winter is quiet, with snowshoeing near Bear Lake and Trail Ridge closed. Our 7-day Colorado road trip combines the park with Glenwood Springs, Aspen and Great Sand Dunes.

Bottom line

Plan Rocky Mountain National Park around its timed-entry season, roughly late May to mid-October: book a Bear Lake Road permit if you want those trails, or enter before 9 a.m. for the rest of the park. Drive Trail Ridge Road between Memorial Day and October, base in Estes Park for hiking or Grand Lake for a quieter stay, and respect altitude and afternoon storms.

FAQ

Do you need a reservation for Rocky Mountain National Park?

In 2026, yes, from May 22 to mid-October for most daytime entries: 9 a.m. to 2 p.m. for most of the park and 5 a.m. to 6 p.m. for Bear Lake Road. Outside those hours and dates, you only need the entrance fee or a pass.

How much is a timed entry permit at Rocky Mountain?

The permit itself costs a $2 Recreation.gov processing fee. You still pay the park entrance fee, $30 for one day or $35 for seven days per vehicle as of November 2026, or show a valid pass.

When does Trail Ridge Road close?

Trail Ridge Road usually closes for the winter in mid to late October, depending on snow, and reopens around Memorial Day. The park’s status line, (970) 586-1222, gives current conditions.

Is Estes Park or Grand Lake better for Rocky Mountain National Park?

Estes Park is better for the Bear Lake trails, more lodging and easy access from Denver. Grand Lake is quieter and better for moose and the west side, but is far from Estes when Trail Ridge Road is closed.