Rocky Mountain timed entry.

What you need, and when.

For most of the warm season you need a timed-entry reservation to drive into Rocky Mountain National Park during set daytime hours. There are two permits, and which one you want depends on whether you plan to use the Bear Lake Road corridor. The park sets the season each spring; these are its published 2026 dates.

How the booking works.

Reservations come out in monthly blocks on Recreation.gov at 8 a.m. MDT on the 1st of the month before, so July dates open on June 1. If a block is gone, the night before is the second chance: the park says 40 percent of each day's available reservations are released at 7 p.m. MDT the evening before, and it warns they sell out quickly. Each reservation gives you a 2-hour window to enter. Once you are in, you can stay as long as you like.

What if you don't have one.

Arrive at an entrance station between 9 a.m. and 2 p.m. without a reservation and you will be asked to turn around and come back after 2 p.m. The simple fix is timing. Enter before 9 a.m. or after 2 p.m. and you can visit the park outside the Bear Lake Road corridor, including a drive over Trail Ridge Road. Bear Lake Road has longer hours, so without the Bear Lake permit you need to enter that corridor before 5 a.m. or after 6 p.m. If you do hold a Bear Lake permit and leave the corridor, the park only lets you back in after 2 p.m.

A permit is not a parking space.

A timed-entry reservation gets your car through the gate. It does not hold you a spot at the trailhead, and the Bear Lake Road corridor is where that bites, because its lots are small and fill early on summer mornings. Trailhead parking areas along the corridor also close from time to time for construction and trail work, and a closure there can make the cheaper plain Timed Entry permit the better buy. So check the park's current conditions for your dates before you pick a permit, then treat an early start or a late afternoon as part of the plan rather than a fallback.

When it matters most.

Timed entry runs right across the busy season. July is the busiest month of the year here, with about 794,537 visits in a typical recent year and 763,213 in 2025. The summer stretch from June through September carries roughly 63 percent of the whole year's visits, so that is when lines, parking, and any booking pressure are heaviest. For the full month-by-month picture, see the crowd calendar linked below.

Common questions.

Do you need a reservation for Rocky Mountain National Park in 2026?
Yes, to drive in during set hours through mid-October. Timed Entry is required from 9 a.m. to 2 p.m. through October 12. Timed Entry+ Bear Lake Road is required from 5 a.m. to 6 p.m. through October 18 for that corridor. Enter outside those hours and you do not need one.

How much does a Rocky Mountain timed-entry reservation cost?
There is a non-refundable $2 Recreation.gov processing fee per reservation. That is separate from the park entrance fee or pass, which you still need to get in.

Can you get into Rocky Mountain without a reservation?
Yes. Enter before 9 a.m. or after 2 p.m. and no reservation is needed for the park outside Bear Lake Road. For Bear Lake Road, the park says you can enter without one before 5 a.m. or after 6 p.m.

What if the reservations are sold out?
Two ways round it. Come back at 7 p.m. MDT the night before, when the park releases 40 percent of the next day's reservations, or skip the permit and enter outside the reservation hours. The monthly blocks open on Recreation.gov at 8 a.m. MDT on the 1st of the month before.

How we read the crowds

The monthly visit counts on this page come from the official NPS Visitor Use Statistics. "Share of peak" compares a month against the park's own busiest month, so 100 percent marks the single busiest month of the year. The reservation and permit rules come from each park's official NPS pages, linked above and last verified on September 13, 2026. We are an independent site and not affiliated with the National Park Service.