Rock Trail to Lost Lake Loop

This loop is rated as moderate. The Rock Trail section involves a steep climb with numerous switchbacks and stairs, which can be challenging. While not recommended for absolute beginners, those with some hiking experience and good physical condition should find it manageable.

The terrain varies significantly. The Rock Trail is known for being steep, featuring large boulders, impressive rock walls, and many steps (reportedly 174!). Closer to Lost Lake, sections can be muddy. Other parts of the loop follow old logging roads with steady elevation gain and occasional switchbacks.

You'll encounter fascinating geology, including fern-covered rocks and sandstone cliffs. The route crosses a creek via Bogaards Bridge. Highlights include the Cyrus Gates Overlook, offering potential views of Mount Baker and the Twin Sisters on clear days, and the tranquil Lost Lake itself, nestled in a recovering forest.

The trail offers unique beauty throughout the year. Fall is particularly vibrant due to the changing colors of bigleaf maple and alder trees. Spring and summer provide lush greenery. Be prepared for potentially muddy conditions near Lost Lake, especially after rain.

Parking is available at Larrabee State Park, which serves as the trailhead for this loop. Specific parking areas for the Rock Trail are usually well-marked within the park.

Generally, trails in Washington State Parks, including Larrabee State Park, allow dogs on leash. Always check the latest park regulations before your visit to ensure compliance.

Yes, Larrabee State Park requires a Discover Pass for vehicle access. You can purchase a day-use pass or an annual pass. This pass supports the maintenance and operation of Washington's state parks.

Winter conditions can include rain, mud, and potentially snow at higher elevations, though significant snowfall is less common directly on the trail. The steep sections of the Rock Trail can become slippery. Always check weather and trail reports before heading out in winter.

The recovering forest around Lost Lake and the surrounding area provides habitat for various wildlife. You might spot common forest birds, small mammals, and potentially deer. Always observe wildlife from a distance and do not feed them.

Yes, the route incorporates sections of several official trails. You will hike along parts of the North Lost Lake Trail, South Lost Lake Trail, the Rock Trail itself, and the Ridge Trail. A small portion also overlaps with the Double Black Diamond trail.

Many hikers find that descending the Rock Trail and then ascending back from Lost Lake can be quite strenuous due to the significant elevation gain on the return. Consider starting early to avoid crowds, especially on weekends, and bring plenty of water for the steep sections.