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Hikes in Trinity County explore the rugged, mountainous terrain of Northern California. The region is characterized by the granite peaks and alpine lakes of the Trinity Alps Wilderness and the vast woodlands of the Shasta-Trinity National Forest. The trail network follows rivers and ascends to high-elevation viewpoints, offering routes across a range of landscapes.
Last updated: May 12, 2026
2
hikers
19.9km
07:22
1,700m
570m
Embark on the Four Lakes and Siligo Peak Loop, a challenging hike through the Trinity Alps Wilderness. This difficult 12.3-mile (19.9 km) route demands a significant effort, climbing 5583 feet (1702 metres) over an estimated 7 hours and 22 minutes. As you traverse diverse alpine terrain, you will encounter four distinct lakes: Deer, Summit, Diamond, and Luella, each set within its own natural basin. The trail offers continuous, sweeping vistas of the surrounding Trinity Alps, culminating in panoramic views from Siligo Peak where you might even spot Mount Shasta on a clear day.
Given its substantial distance and elevation gain, many hikers choose to complete this loop as a multi-day backpacking trip. If you plan to stay overnight, remember that self-issued permits are required, so make sure to secure one before you begin. Be aware that the higher elevations along the route can lead to a shorter access window later in the season, so plan your visit accordingly to avoid early snow or difficult conditions.
This loop is celebrated for its remarkable concentration of natural features and viewpoints, making it a standout experience in the region. The journey through the Trinity Alps reveals a rich tapestry of alpine ecosystems, from the serene lake shores to the rugged peaks. It is a prime example of the wilderness's raw beauty, offering a deep immersion into a pristine mountain environment.
1
hikers
7.90km
02:16
270m
60m
Embark on a moderate hike to Porcupine Lake, following a section of the Pacific Crest Trail. This 4.9-mile (7.9 km) route takes you through diverse Northern California landscapes, offering views of Mount Shasta and the Trinity Alps as you gain 882 feet (269 metres) in elevation. The journey, typically completed in 2 hours and 16 minutes, leads you to the serene Porcupine Lake, nestled within a rocky cirque with deep, clear waters and high granite walls.
For the best experience, plan your visit during the summer and fall months. While the trail is accessible year-round, be prepared for potentially challenging snow crossings if you hike in other seasons. You are welcome to bring your pets along, provided they are kept on a leash throughout your adventure. Remember that bikes are not permitted on this segment of the Pacific Crest Trail.
This trail offers a rewarding exploration within the beautiful Shasta-Trinity National Forest. You will traverse open, rugged terrain, pass through old-growth forests, and discover lush meadows on your way to the alpine lake. The distinct setting of Porcupine Lake, surrounded by high granite walls, makes it a notable destination in the region.

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13.8km
05:29
1,140m
90m
Embark on the Alpine Lake Trail for a demanding hike that rewards you with stunning mountain scenery. This difficult route spans 8.6 miles (13.8 km) and involves a significant elevation gain of 3741 feet (1140 metres), typically taking around 5 hours and 29 minutes to complete. As you ascend through varied terrain, from dense forests to rocky sections, you'll eventually reach the shimmering alpine lake, a true highlight nestled among towering peaks.
When planning your visit, be aware that conditions on the trail can change rapidly, especially due to the high elevation. If you are hiking in winter, prepare for snowpack and ice, and consider bringing traction devices like crampons or snowshoes. Always be ready for sudden weather shifts and understand the potential for altitude sickness on this challenging route.
The Alpine Lake Trail is set within the rugged beauty of the Trinity Alps Wilderness. In summer, the open alpine meadows come alive with wildflowers, offering expansive panoramic vistas of the surrounding peaks. Keep an eye out for local wildlife, such as marmots, as you traverse this memorable landscape.
4.33km
01:25
270m
100m
Embark on an easy hike along the Boulder Lake Trail, a route that guides you through lush meadows and deep forests. This 2.7-mile (4.3 km) journey involves an 880 feet (268 metres) elevation gain, typically taking about 1 hour and 24 minutes to complete. You will discover the pristine Boulder and Little Boulder Lakes, nestled beautifully against white granite walls. These serene alpine lakes offer a peaceful setting, ideal for fishing or a refreshing swim on a warm day.
The trail surface consists of a mix of dirt and rock, providing varied footing as you go. If you plan to bring your dog, you will be pleased to know they are welcome on this route, making it a great family-friendly option. For those considering an extended adventure, Boulder Lake offers approximately six good campsites, perfect for an overnight stay under the stars. Remember to pack essentials for a day hike or camping, depending on your plans.
Located within the vast Trinity Alps Wilderness, the Boulder Lake Trail stands out for its striking geological features. The white granite walls surrounding Boulder and Little Boulder Lakes create a distinctive and picturesque landscape. This area provides a true alpine oasis, offering a tranquil escape into nature. It is a notable destination for experiencing the raw beauty of the wilderness.
22.6km
07:28
1,100m
1,020m
The Bear Basin - Granite Lake Loop offers a challenging hiking experience through the rugged Trinity Alps Wilderness. You will navigate dense forests of pine and cedar, gradually ascending into sparser subalpine zones. The route is a difficult 14.1 miles (22.6 km) long, involving a significant elevation gain of 3604 feet (1098 metres). Expect to spend around 7 hours and 27 minutes on the trail, encountering rocky and uneven sections that demand careful footing. A highlight is the serene Granite Lake, where craggy peaks reflect beautifully in its waters, providing a perfect spot for a break.
Before you set out on this demanding hike, ensure you have a good level of fitness and prior experience with challenging trails. Sturdy hiking boots are highly recommended to manage the varied terrain and uneven surfaces. Always carry enough water and supplies, as the trail is remote. Be aware of local wildlife, including black bears, and know how to act responsibly in their habitat. This loop is best enjoyed during the warmer months when the trails are clear of snow.
This trail is notable for its expansive, 360-degree panoramic views of the Trinity Alps as you traverse a ridge. The journey provides a constantly changing visual experience, moving from dense forest to open subalpine landscapes. It is an excellent choice if you are seeking a deep immersion into the wilderness, far from crowded paths. The diverse ecosystem supports a variety of species, making each visit unique.
8.69km
02:55
640m
0m
Embark on a moderate hiking adventure to Mount Eddy, covering 5.4 miles (8.7 km) with a significant elevation gain of 2102 feet (641 metres). This route, estimated to take around 2 hours and 54 minutes, leads you through diverse terrain, from shaded sections of the Pacific Crest Trail to open alpine meadows. You will pass the shimmering Middle Deadfall Lake before beginning the final, steeper ascent to the summit, where the views open up dramatically.
When planning your visit, be aware that while the initial part of the trail to Middle Deadfall Lake is more gentle, the climb to Mount Eddy's summit is strenuous, especially due to the altitude. If you are hiking during winter months, you should be prepared for challenging conditions and bring appropriate gear like microspikes or snowshoes to ensure a safe and enjoyable experience.
Mount Eddy holds the distinction of being the highest point west of Mount Shasta, offering incredible 360-degree panoramic views from its peak. From this vantage point, you can clearly see Mount Shasta itself, the rugged Trinity Alps, and the vast surrounding wilderness, making it a truly rewarding destination for those seeking expansive vistas.
6.71km
01:55
130m
210m
Embark on an easy hike along the Pacific Crest Trail into the stunning Seven Lakes Basin. This 4.2-mile (6.7 km) route offers continuous, expansive views, allowing you to gaze upon the jagged spires of the Trinity Alps to the west. You will also see the iconic Mount Shasta dominating the horizon as you make your way. With a gentle elevation gain of 426 feet (130 metres), this trail is designed for a relaxed pace, taking about 1 hour and 55 minutes to complete. As you approach the basin, you can discover Upper Seven Lake and other serene alpine lakes, perfect for a refreshing stop.
Your journey begins at the Gumboot Trailhead, conveniently located on the Pacific Crest Trail. This access point makes it easy to start your adventure into the Seven Lakes Basin. While the trail is generally easy, be prepared for potential conditions depending on the time of year. Early in the season, you might encounter patches of slippery snow, so check conditions before you go. Some descents into the basin can also be steep with loose rocks, making appropriate footwear essential for a safe and enjoyable experience.
This trail is notable for offering some of the best viewpoints of the Seven Lakes Basin from the Pacific Crest Trail. Beyond the Trinity Alps and Mount Shasta, you can catch glimpses of Mount Eddy and the Russian Wilderness in the distance. The opportunity to explore Upper Seven Lake and other smaller alpine lakes within the basin provides a unique natural feature, inviting you to immerse yourself in the high-country environment.
15
hikers
24.9km
07:34
850m
850m
Hike the difficult 15.5-mile Canyon Creek Trail in Trinity Alps Wilderness, featuring alpine lakes, waterfalls, and views of Sawtooth Mounta
8
hikers
7.96km
02:37
600m
20m
Hike the moderate 4.9-mile Granite Lake Trail in Trinity Alps Wilderness, gaining 1975 feet to a scenic glacial lake.
5.0
(1)
4
hikers
9.95km
02:42
140m
140m
Deadfall Lakes Trail offers a moderate 6.2-mile hike through Shasta-Trinity National Forest to clear alpine lakes and stunning mountain view
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Popular around Trinity County
This is the smallest of the alpine lakes on the Four Lakes Loop. From here you get views of the upper Stuart Fork Valley toward Morris Meadow.
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This is the largest of the four beautiful alpine lakes beneath Siligo Peak. The route to the summit picks up near where the trail from Summit Lake rejoins the Four Lakes Loop.
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Looking back out on the valley, the mountains are a staggering two-tone of orange and white rock.
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Granite Lake sits in a basin formed by the tall shoulders of Gibson Peak, which rises up to 8400 feet. There is a wide, flat chunk of bedrock near the trail which makes for the perfect picnic spot on the water's edge.
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These campsites are very exposed, but if the conditions fit, you can enjoy a gorgeous view while camping.
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Whether camping, fishing, or just stopping for a picnic, Middle Deadfall Lake is a fine place to spend the day. The lake is large, and is an optimal destination to fish for trout, specifically brook, rainbow, and occasionally brown. Fly fishing is especially good here.
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Sawtooth Mountain stands at 8,891 feet/2,710 meters. Composed primarily of granite, this remarkable peak can be viewed from almost anywhere in the Trinity Alps.
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Yes, the region offers some gentle options perfect for families. A great choice is the Ewing Reservoir trail in the Six Rivers National Forest. It's a relatively flat, 2.2-mile (3.5 km) walk around the reservoir, making it accessible for hikers of all ages.
For a rewarding hike to a beautiful alpine lake, consider the Deadfall Lake via Pacific Crest Trail. This 6.2-mile (10 km) route in the Russian Wilderness involves a manageable climb and offers stunning scenery, culminating at the picturesque Deadfall Lake.
The Trinity Alps are famous for multi-day treks. The Summit Lake – Diamond Lake loop from Long Canyon Trailhead is a strenuous 18-mile (29 km) circuit that is a favorite for experienced backpackers. It features significant elevation gain and rewards with incredible views and access to multiple alpine lakes.
Dogs are generally permitted on trails in the Shasta-Trinity National Forest and Trinity Alps Wilderness, but they must be under voice control or on a leash. Always check specific trailhead regulations before you go. Remember to pack enough water for your dog and be prepared to pack out all waste.
Many trails in Trinity County feature waterfalls, especially during the spring and early summer melt. The Swift Creek Trail is well-known for a picturesque 20-foot waterfall just one mile from the trailhead, making it a popular and accessible destination for seeing cascades.
The prime hiking season is typically from July to October. During these months, the snow has usually melted from the higher elevation trails, the weather is warmer, and the days are long. Wildflowers are often at their peak in July and August. Always check trail conditions before you go, as snow can linger in high passes well into the summer.
Yes, a wilderness permit is required for both day hiking and overnight camping within the Trinity Alps Wilderness. You will also need a California Campfire Permit for using a stove or having a campfire. Permits help manage visitor use and protect the wilderness. You can find more information on the Visit Trinity website.
Trinity County is home to a diverse range of wildlife, including deer, marmots, and various bird species. Black bears are also present in the area. It is essential to store your food properly, preferably in a bear-resistant canister, especially when backpacking. Make noise while you hike to avoid surprising a bear, and never feed any wildlife.
Yes, there are several excellent loop hikes. For a challenging day out with varied scenery, the Middle Deadfall Lake – Mount Eddy loop is an 8-mile (13 km) route that offers fantastic views from the summit of Mount Eddy and passes by serene lakes.
The region is dominated by two vast, highly-regarded natural areas. The
Trinity Alps Wilderness is a local favorite, celebrated for its 500,000+ acres of granite peaks, alpine lakes, and extensive trail system. It's the heart of hiking in the county.
The Shasta-Trinity National Forest is another enormous and popular destination, offering millions of acres of forest trails, campgrounds, and recreational lakes that provide endless opportunities for exploration.
The area is well-regarded by the komoot community. Reviewers often praise the solitude and rugged beauty of the Trinity Alps Wilderness, highlighting the stunning granite landscapes and pristine alpine lakes. The sheer scale of the Shasta-Trinity National Forest is also frequently mentioned as a major draw for adventurers.
Absolutely. The Seven Lakes from Gumboot Trailhead hike is a fantastic moderate option. This 7-mile (11.4 km) trail within the Shasta-Trinity National Forest takes you through a basin dotted with several beautiful lakes, offering a lot of scenic variety without extreme difficulty.


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