At a Glance
- Distance from Cabins: 5 minutes
- Park Elevation Range: 7,860–12,183 ft
- Miles of Hiking Trails: 300+
- Annual Visitors: 4+ million
Why the West Side Is Better for Most Visitors
Rocky Mountain National Park receives over 4 million visitors annually, and the majority enter through the east (Estes Park) side. This means the west entrance at Grand Lake — which provides access to the same park, the same Trail Ridge Road, and similarly spectacular scenery — is dramatically less crowded. Trailhead parking is easier to find, ranger stations have shorter lines, and the wildlife corridors feel quieter.
The Colorado River headwaters run through the park's western valley, and this is where moose congregate in large numbers — more reliably here than almost anywhere else in Colorado. If moose sightings are on your list, the Colorado River Trail from the Grand Lake entrance is the place to be.
Must-Do Trails From the Grand Lake Entrance
The Colorado River Trail (3.6 miles out and back) follows the flat upper valley of the Colorado River through willow meadows where moose feed year-round. The trail is accessible from the Timber Creek Campground area and requires almost no elevation gain — ideal for families and casual hikers. East Inlet Trail leads to Adams Falls in just under a mile, with longer options into the backcountry beyond.
For a bigger challenge, the Tonahutu Creek Trail climbs through subalpine meadows to connect with the high country above timberline. The North Inlet Trail offers a remote, multi-day route across the park to Bear Lake on the eastern side. All trailheads require a park entry fee or America the Beautiful Pass.
Trail Ridge Road from Grand Lake
Trail Ridge Road — the highest continuous paved highway in the United States — begins its climb from the Grand Lake entrance, ascending to 12,183 feet at its highest point before descending to Estes Park on the east side. The full drive one-way is 48 miles and takes 2 to 3 hours depending on stops.
The Alpine Visitor Center at 11,796 feet is open in summer and offers exhibits on the tundra ecosystem and extraordinary panoramic views. Elk and bighorn sheep are commonly seen along the road. Trail Ridge Road typically opens in late May and closes in mid-October due to snow — check nps.gov/romo for current road conditions.
Planning Your RMNP Visit
Rocky Mountain National Park requires timed entry permits for the most popular areas from late May through mid-October. Permits for the Bear Lake Road corridor and the park's most popular hikes are released on recreation.gov — book as early as possible, as they sell out weeks in advance. The Grand Lake corridor does not require a timed permit, which is another advantage of the west-side entrance.
Arrive early for the best wildlife viewing — dawn and dusk are when animals are most active. Bring bear spray on any backcountry hike, and never approach wildlife. The park is open year-round, with winter offering snowshoeing and cross-country skiing on unplowed roads.