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Boulder Lake Loop Trail
Boulder Lake Loop Trail

Boulder Lake Loop Trail

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Trail Information
Location

Idaho 83638, United States

Park

Payette National Forest

Elevation

1500 ft

Distance

6.5 mi

Duration

4 to 5 hours

Difficulty

Moderate

Best Season

Summer (June to September) and Fall

Condition

N/A

Type

Loop

Boulder Lake Loop Trail

Overview: The Boulder Lake Loop Trail is a scenic alpine adventure in the Payette National Forest, offering hikers a refreshing mix of pristine lakes, rugged mountain ridges, and dense conifer forests. Known for its tranquil setting and beautiful high-elevation landscapes, this loop immerses visitors in the quiet solitude of the Idaho wilderness. With sparkling alpine waters, wildflower meadows, and panoramic views of surrounding peaks, the trail is both a peaceful escape and a rewarding outdoor challenge. Wildlife sightings are common, with opportunities to spot deer, elk, black bears, and a variety of bird species along the route.


Trail Details:
Trail Length: Approximately 6.5 miles round-trip (loop)
Duration: 4 to 5 hours
Difficulty Level: Moderate
Elevation Gain: Around 1,500 feet
Trail Type: Loop


Key Features:
Boulder Lake: The loop begins with a steady climb that soon opens to Boulder Lake, a sparkling alpine lake framed by pine and fir trees. The lake’s shoreline is a popular spot to pause, take in the reflections of the surrounding peaks, and enjoy a picnic.
Meadows and Streams: Beyond Boulder Lake, the trail passes through lush meadows dotted with wildflowers in summer and follows babbling streams that provide peaceful breaks along the way.
Ridgeline Views: As the loop ascends higher, hikers are treated to expansive vistas of the Payette National Forest’s rugged terrain, with layers of forested hills and distant mountain ranges stretching to the horizon.
Wildlife Viewing: The area supports diverse wildlife, and careful hikers may catch glimpses of mule deer, elk, or smaller mammals. Bird enthusiasts will appreciate the variety of forest birds and raptors that soar overhead.
Other Alpine Lakes: Depending on route variations, hikers may encounter smaller high-country lakes, each offering a serene, mirror-like surface and quiet beauty.


Trailhead Information:
Starting Point: Boulder Lake Trailhead, accessible via a well-traveled forest road from McCall, Idaho
Parking: The trailhead has a modest parking area, so arriving early is recommended, especially on summer weekends.
Access Fees: No entrance fee is required for this part of Payette National Forest, though a valid recreation pass may be required for parking depending on current regulations.


Best Season to Visit:
Summer (June to September): This is the most popular season to hike the loop, with clear trails, mild temperatures, and wildflowers at their peak. Afternoon thunderstorms can develop, so early starts are advised.
Fall: Crisp air and colorful foliage make autumn a spectacular time to hike, though colder nights and the possibility of early snow should be expected.


Trail Tips:
Gear: Wear sturdy hiking boots, as the trail includes rocky sections and some moderate climbs. Trekking poles can be helpful on descents.
Water: Carry enough water for the full loop. Streams may provide refill opportunities, but a filter or purification method is necessary.
Camping: While many hikers complete the loop as a day hike, backcountry camping is allowed in the area. Campsites near Boulder Lake are especially scenic, but be prepared for chilly nighttime temperatures.
Wildlife Safety: Store food securely and keep a safe distance from wildlife. Black bears are present in the forest, so carrying bear spray is recommended.
Leave No Trace: Respect the fragile alpine environment by packing out all trash and minimizing your impact on the trail and surrounding lakes.


Trail Highlights:
Lake Reflections: The still waters of Boulder Lake create stunning reflections of the surrounding peaks, making it a perfect spot for photography.
Mountain Vistas: The higher portions of the loop reveal sweeping views of the Payette National Forest and beyond, rewarding hikers for their steady climb.
Seasonal Beauty: Wildflowers in summer, fiery foliage in fall, and snow-capped ridges in the shoulder seasons each give the trail a unique charm.
Solitude: Though accessible, the Boulder Lake Loop often provides a sense of seclusion compared to more crowded alpine destinations.


Additional Information:
Weather: Conditions in the Payette National Forest can change rapidly. Summer storms bring sudden rain and lightning, while higher elevations can be unexpectedly cool even in midsummer. Always check forecasts and prepare accordingly.
Trail Condition: Snow may linger on shaded sections of the trail until early summer. By late season, fallen leaves or early frost may make parts of the path slippery, so proceed with caution.

The Boulder Lake Loop Trail combines the tranquility of alpine lakes with the grandeur of forested ridges, making it one of the hidden gems of the Payette National Forest. Whether you’re seeking a rewarding day hike, a peaceful camping trip, or simply a chance to immerse yourself in Idaho’s mountain landscapes, this trail offers a memorable and restorative wilderness experience.


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Published Aug 29, 2025
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