What you need, and when.
You need a timed-entry reservation to drive into Rocky Mountain National Park during the day from May 22 through mid-October in 2026. There are two permits, and which one you want depends on whether you plan to use the Bear Lake Road corridor.
| Timed Entry (rest of park) | Required 9 a.m. to 2 p.m. daily, May 22 through October 12, 2026. |
| Timed Entry + Bear Lake Road | Required 5 a.m. to 6 p.m. daily, May 22 through October 18, 2026. Covers Bear Lake Road plus the rest of the park. |
| Where to book | Recreation.gov only (website, app, or 877-444-6777). Not sold at the entrance. |
| Cost | A $2 Recreation.gov processing fee per reservation. |
| No reservation needed | Enter before 9 a.m. or after 2 p.m. and you do not need a timed-entry permit at all. |
How the booking works.
Reservations open in monthly blocks on Recreation.gov. A block releases on the 1st of the month before at 8 a.m. Mountain time. For example, July slots open June 1, and August slots open July 1. If those are gone, the park also releases about 40 percent of each day's reservations the evening before at 7 p.m. Mountain time, so a next-day plan is possible if you are quick.
What if you don't have one.
During the required hours, you will be turned away at the entrance without a reservation. The simple workaround the park itself points to is timing: drive in before 9 a.m. or after 2 p.m. and no permit is required. Sunrise and late-afternoon entries are a real way around the system, and they line up nicely with lighter crowds and better light.
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 the day. A timed-entry reservation from Recreation.gov is required from 9 a.m. to 2 p.m. (rest of park) or 5 a.m. to 6 p.m. (Bear Lake Road corridor), May 22 through mid-October. Enter before or after those hours and you do not need one.
How much does a Rocky Mountain timed-entry reservation cost?
There is a $2 Recreation.gov processing fee per reservation. That is separate from the park entrance fee, which you still pay 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 timed-entry permit is required. The park confirms this on its timed-entry page. Early and late entries also mean smaller crowds.
When do Rocky Mountain reservations get released?
In monthly blocks on Recreation.gov, on the 1st of the prior month at 8 a.m. Mountain time. About 40 percent of each day's permits are also released the evening before at 7 p.m. Mountain time.
Reservation rules change from year to year, and sometimes mid-season. Confirm the current rule on the official park page before you book or travel. Rocky Mountain timed-entry page (NPS)
Rules on this page last verified against the official NPS pages on July 13, 2026.
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 July 13, 2026. We are an independent site and not affiliated with the National Park Service.
Independent site. Not affiliated with or endorsed by the National Park Service. Data comes from the official NPS Visitor Use Statistics Data Package, 2025; editorial analysis is ours. The NPS Arrowhead and other NPS marks are not used.