Highlight • Summit
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Union Peak is a distinctive, heavily eroded shield volcano located within the stunning Crater Lake National Park in the southern Cascade Range of Oregon. Rising to an elevation of 2,334 meters (7,657 feet), this prominent summit stands less than 11 kilometers southwest of the rim of Crater Lake. Its rugged, almost Matterhorn-like appearance is a testament to millions of years of glacial erosion during the Ice Age, which carved deep cirques and left behind its central, towering horn.
Hikers are consistently drawn to Union Peak for its truly panoramic vistas of the surrounding Oregon Cascades. From the summit, visitors can enjoy sweeping views that include parts of Crater Lake's caldera, as well as distant peaks like Mount Thielsen and Mount Mazama. The sense of achievement after navigating the challenging ascent, combined with the unique geological features, makes the effort incredibly rewarding for those seeking a remote and less crowded experience.
Before embarking on the journey to Union Peak, hikers should be prepared for a strenuous climb, especially the final ascent which involves navigating large rocks and some scrambling. Sturdy hiking boots with good ankle support are essential, as is plenty of water, as much of the trail passes through a "Green Tunnel" of forest with limited views until the very top. Parking is available at the trailhead off Oregon Route 62, which also provides access to the Pacific Crest Trail.
The best time to hike Union Peak is typically during the late spring, summer, and early fall months, when the trails are free of snow and the weather is generally clear. This period offers ideal conditions for hiking and enjoying the expansive views. The trail is primarily used for hiking, offering a challenging but memorable experience for those looking to conquer a significant peak within the national park.
The 5.5-mile (8.9 km) trail to the summit, accessible via a spur off the Pacific Crest Trail, offers a unique journey through ancient forests before opening up to the exposed peak. Along the way, hikers might notice the unique granite at the summit, which has been melted by lightning strikes, appearing almost like glass. This natural phenomenon adds another layer of intrigue to the already fascinating geological history of Union Peak.
For those planning a visit, komoot offers a variety of routes and detailed maps to help you explore Union Peak and the surrounding Crater Lake National Park. Whether you're looking for a challenging summit hike or other trails in the area, you can find options tailored to your fitness level and interests, ensuring a well-prepared and enjoyable adventure in this historic and scenic part of the Oregon Cascades.
This Highlight is in a protected area
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November 12, 2022
Hiking

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4
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15.1km
04:25
400m
400m
Hike the Union Peak Trail in Crater Lake National Park for panoramic views, unique geology, and a challenging summit climb.
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Elevation 2,330 m
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Yes, there are several peaks named Union Peak across the United States. This page specifically refers to Union Peak in Crater Lake National Park, Oregon. It's a heavily eroded shield volcano known for its rugged, Matterhorn-like appearance and panoramic views of the Oregon Cascades. Other notable Union Peaks exist in Washington State, Arizona, and Wyoming, each with distinct characteristics.
Within Crater Lake National Park, pets are generally restricted to paved roads, parking lots, and designated paved trails. The Union Peak trail is a dirt trail and therefore not typically dog-friendly. Always check the latest National Park Service regulations for specific pet policies before your visit.
The Union Peak trail is considered a strenuous hike, especially the final ascent involving large rocks and some scrambling. While older, experienced children might manage, it's generally not recommended for young children or beginner hikers due to its difficulty and length (5.5 miles one-way). For families or beginners, consider easier trails within Crater Lake National Park or nearby areas that offer less elevation gain and technical terrain.
No specific hiking permit is required to access the Union Peak trail itself. However, since Union Peak is located within Crater Lake National Park, you will need to pay the standard park entrance fee upon arrival. This fee covers access to all park facilities and trails.
The 5.5-mile (8.9 km) trail to the summit is challenging. Hikers should generally allow 4 to 6 hours for a round trip, depending on fitness level and time spent enjoying the views at the top. The final ascent can be slow-going due to the rocky terrain.
Parking is available at the trailhead off Oregon Route 62, which also provides access to the Pacific Crest Trail. However, parking can fill up quickly, especially during peak season (summer and early fall) and on weekends. Arriving early in the morning is highly recommended to secure a spot and avoid crowds on the trail.
The trail to Union Peak is typically snow-free from late spring through early fall, which is the best time to visit. During winter, the trail is usually covered in snow and ice, making it inaccessible for most hikers without specialized winter gear and experience. In peak season (summer), the trail can be moderately trafficked, but it generally offers a less crowded experience compared to more popular viewpoints directly on Crater Lake's rim.
Beyond sturdy hiking boots with good ankle support and plenty of water, consider bringing layers of clothing as weather can change rapidly. Sun protection (hat, sunscreen, sunglasses) is crucial, especially on the exposed summit. Trekking poles can be very helpful for stability on the steep and rocky sections. A map and compass or GPS device are also recommended, as cell service can be unreliable.
Union Peak is located within Crater Lake National Park, which has limited services. The nearest amenities, including lodging, restaurants, and cafes, are typically found at Crater Lake Lodge or Mazama Village within the park, or in the nearby towns outside the park such as Fort Klamath or Chiloquin. It's advisable to bring all necessary food and drinks for your hike.
The trail passes through ancient forests and open areas, offering opportunities to spot various wildlife. Common sightings include deer, chipmunks, and a variety of bird species. While less common, black bears and cougars also inhabit the park, so it's important to be bear-aware and carry bear spray if you feel it's necessary. Always observe wildlife from a safe distance and never feed animals.
Both Union Peak and Mount Scott offer excellent panoramic views within Crater Lake National Park, but they differ in experience. Union Peak is a longer, more strenuous hike (5.5 miles one-way) with a challenging, rocky final ascent, offering views that include parts of Crater Lake's caldera from a more distant perspective. Mount Scott is the highest point in the park, with a shorter (2.5 miles one-way), but still steep, trail. Mount Scott provides more direct and expansive views of Crater Lake itself. Union Peak is generally considered more remote and less crowded.
No, the Union Peak trail is an out-and-back trail. Hikers ascend to the summit and then return via the same path. There is no designated loop option for this specific trail.