Merriam Lake Trail

While komoot rates the Merriam Lake Trail as moderate, it is generally considered a difficult and strenuous hike. It involves a significant elevation gain of approximately 1,500 feet (457 meters) over its course, with sections that are steep and rocky, especially on the final approach to the lake. Hikers should be prepared for varying terrain and exposure. It's best suited for those who are regular hikers.

The trail officially begins at the West Fork Upper Pahsimeroi Trailhead. This trailhead serves as the primary access point, and parking is available there. It's advisable to arrive early, especially during peak season, to secure a spot.

The trail offers incredibly varied and stunning scenery. You'll start through lush meadowlands before ascending into a subalpine forest filled with spruce and alpine firs, often adorned with vibrant wildflowers. As you climb, the terrain becomes more exposed, revealing astounding panoramic views of the Lost River Mountains. The final stretch to the lake involves a steep, rocky ascent. Along the way, you might also encounter beautiful waterfalls.

The ultimate highlight of this trail is the breathtaking Merriam Lake itself, a mesmerizing blue glacial lake cradled by towering, craggy granite bluffs. Beyond the lake, the entire journey offers spectacular panoramic mountain vistas and diverse alpine flora. The West Fork Upper Pahsimeroi Trailhead is your starting point, setting the stage for the adventure.

The Merriam Lake Trail is primarily an out-and-back route. You will return along the same path you took to reach the lake.

The best time to hike this trail is typically during the late spring, summer, and early fall months when the snow has melted and the weather is most favorable. During these periods, you'll experience vibrant wildflowers and accessible conditions. Always check local weather forecasts, as afternoon altitude storms can occur, and it's wise to seek cover beneath the treeline if one approaches.

Generally, trails within the Salmon-Challis National Forest, where Merriam Lake Trail is located, allow dogs. However, they must be kept on a leash to protect wildlife and ensure a pleasant experience for all hikers. Always practice Leave No Trace principles, including packing out all pet waste.

As of current information, there are typically no specific permits required for day hiking the Merriam Lake Trail, nor are there general entrance fees for accessing the Salmon-Challis National Forest. However, regulations can change, so it's always a good idea to check the official U.S. Forest Service website for the Salmon-Challis National Forest before your trip for the most up-to-date information on any potential permits or fees.

Due to its significant elevation gain and strenuous nature, the Merriam Lake Trail is generally not recommended for beginners or families with very young children. While some ambitious novices or families with older, experienced children might manage it, it requires a good level of fitness and hiking experience. It's best to assess your group's capabilities carefully before attempting this hike.

Given the trail's difficulty and exposed sections, you should bring plenty of water, snacks, appropriate hiking footwear, layers of clothing for varying weather conditions (including rain gear), sun protection (hat, sunscreen), and a map or GPS device. Trekking poles can also be very helpful for the steep and rocky sections.

Yes, while the route primarily follows the Merriam Lake Trail, a small section also overlaps with the Pass Lake Trail.