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    Merriam Lake Hike

    This reflects the 10Adventures difficulty rating for each route. We aim to keep ratings consistent across regions.
    This reflects the estimated time the majority of users will take on this trail. If you are slower, add time to the top-end figure. If you are fast, then you may complete this route faster than this time range.
    This reflects the return distance of this route as measured by the GPS file.
    6.0 km
    This reflects the total elevation gained throughout this route as measured by the GPS file. This includes all ascents and descents, and is higher than what is quoted in most route guides, which simply measure the distance between the starting-point and high-point of the route.
    455 m
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    Directions to Trailhead
    Merriam Lake Hike

    Spellbinding mountain views await you on the Merriam Lake Hike. This incredible adventure into the Lost River Mountains is not one you will soon forget! Explore Idaho’s alpine and discover an idyllic lake hidden in the preserved wilderness.

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    Route Description for Merriam Lake Hike

    Mountain vistas, scenic montane meadows, alpine firs, granite gardens, and a glacial lake—what more could you ask for from a high-country hike? Unlike many ascents into Idaho’s mountains, this particular adventure is manageable for ambitious novices and families with older children. As the route is packed with elevation gain and much of the terrain is exposed, it is important to be prepared for varying weather conditions. Additionally, those hiking should be mindful of afternoon attitude storms that commonly affect the area—if you encounter a storm, please take a retreat beneath the treeline.

    Embark on your journey up to Marriam Lake from the trailhead off the National Forest Development Road 118. Setting out from here, the Merriam Lake Trail travels southwestwardly, traveling through a lush meadowland before escaping beneath the canopy of spruce and alpine firs. You will also be gifted scenes of vibrant wildflowers carpeting the forest floor as you wander. Gradually climbing through the subalpine forest, the incline will intensify as you near the lake. Ascending further into the wilderness, the terrain will become increasingly exposed, unveiling astounding scenes of the Lost River Mountains.

    After a steep, rocky climbing, you will crest the shoreline of Merriam Lake—a clue-hued pool hemmed by towering, craggy granite bluffs. Marvel at the majesty of the mountainous landscape and the beauty of the glacial pool. After luxuriating in the alpine waters, head back to the trailhead the way you came.

    Getting to the Merriam Lake Hike Trailhead

    Access this hike from the trailhead off the National Forest Development Road 118.

    Route Information

    • Backcountry Campground


    • When to do


    • Pets allowed

      Yes - On Leash

    • Family friendly

      Older Children only

    • Route Signage


    • Crowd Levels


    • Route Type

      Out and back

    Merriam Lake Hike Elevation Graph

    Weather Forecast

    Check Area Weather

    Merriam Lake Hike Reviews

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