Best natural monuments in Tehama County, California, showcase a diverse landscape with significant natural features. The region is characterized by volcanic formations, expansive lakes, and prominent rivers. These areas provide opportunities for exploring geological wonders and engaging in various outdoor activities.
Last updated: April 25, 2026
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North Yolla Bolly Lake is a small lake just below the peak of North Yolla Bolly. The climb to the lake can be difficult, making it a worthwhile reward. Camping is not allowed within 100 feet of the water.
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"This moderately difficult section of the PCT takes one through one floriferous rock garden after another, interspersed now and again by shady, cool pine-fir forest. Every color of the rainbow was represented in these rock gardens, some of which were perched on hillsides, others on open ridgelines with expansive views." https://shasta-cnps.org/humboldt-summit-to-little-cub-spring-july-10-2022/
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Fed by the convergence of East Sulphur Creek and Bumpass Creek, Mill Creek Falls is the highest waterfall in the park, plunging 75 feet.
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Enjoy the view at these stunning volcanic rock formations that are more impressive than the area in Lassen volcanic National Park that the PCT will lead you to.
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The PCT straddles the ridge between the Butt Creek watershed to the east and the Cub Creek drainage to the west.
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Brokeoff Mt is the second highest point in the Lassen Volcanic National Park. It sees year-round activity because of itβs easy access from Highway 89. The round trip from the trailhead (approximately 6,600β) to the summit (9,235ft / 2814m) is 7 miles on the summer trail, and about 6 miles during the winter with a direct snow approach. The southern slopes offer excellent ski and snowboard descents all the way to the car on moderately steep pitches. Views from the summit are of Mt Shasta to the north and Mt Lassen to the northeast. Brokeoff Mt is the furthest west mountain in the park and is adjacent to the parks Southwest entrance. It is three miles southwest of Lassen, and connected to it via a ridgeline. This ridge linking Brokeoff and Lassen includes Mt Diller, Pilot Pinnacle, Ski Heil Peak and Eagle Peak. It is possible to make a ridgeline traverse linking Brokeoff to Lassen. This traverse would involve a few technical sections. Brokeoff Mt is one of the last remaining remnants of a large volcano called Mt Tehama that was at itβs maximum height and girth around 300,000 years ago. Mt Tehama was a stratovolcano that was about 11,000β and similar in size and shape to Oregonβs Mt Hood. Because of itβs existence during the Ice Age, Mt Tehama was heavily carved away by massive glaciers which left only fragments from Brokeoff Mt to Mt Conard to the east and Mt Diller to the north. The glaciers left Brokeoff with an impressive vertical north face with an appearance that half of the mountain βbroke offβ. https://www.summitpost.org/brokeoff-mountain/150928
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Tehama County offers a diverse range of natural monuments. Highlights include the challenging ascent to Brokeoff Mountain (9,235 ft) β Lassen Volcanic National Park, which provides stunning views of Mount Shasta and Mount Lassen. You can also explore the unique geological spectacle of the Volcanic Rock Columns, or enjoy the expansive views from the Cub-Butt Divide ridge, a section of the Pacific Crest Trail.
Yes, Mill Creek Falls is a notable natural monument in Tehama County. It is the highest waterfall in Lassen Volcanic National Park, plunging 75 feet, and is fed by the convergence of East Sulphur Creek and Bumpass Creek.
Tehama County is rich in volcanic formations. You can witness the remnants of the ancient Mount Tehama stratovolcano at Brokeoff Mountain, explore unique Volcanic Rock Columns, and experience the geological wonders of Lassen Volcanic National Park, which features all four types of volcanoes, hot springs, fumaroles, and mud pots.
The best time to visit depends on the specific monument and your desired activities. For higher elevation areas like Lassen Volcanic National Park, summer and early fall (June to October) offer the most accessible conditions for hiking. However, areas like Brokeoff Mountain see year-round activity, with winter offering opportunities for ski and snowboard descents. Lower elevation areas and lakes like Black Butte Lake are enjoyable in spring and fall for milder weather.
While some natural monuments involve challenging hikes, areas like Black Butte Lake offer family-friendly activities such as fishing, boating, swimming, and picnicking. Lassen Volcanic National Park also has scenic drives and various trails, some of which are suitable for families. Always check specific trail difficulties before heading out.
Beyond exploring the monuments themselves, Tehama County offers a variety of outdoor activities. You can find numerous road cycling routes, including loops around Emerald Lake and Lake Helen, as detailed in the Road Cycling Routes in Tehama County guide. The Sacramento River is excellent for fishing and kayaking, and Black Butte Lake is ideal for boating and swimming.
Absolutely. Many natural monuments are accessible via hiking trails. For instance, you can hike to Mill Creek Falls, or explore sections of the Pacific Crest Trail near the Cub-Butt Divide ridge. For more options, check out the Waterfall hikes in Tehama County and Easy hikes in Tehama County guides.
The Ishi Wilderness is a 41,000-acre low-elevation wilderness in the southern Cascade foothills. It's characterized by basaltic outcroppings, caves, and pillar lava formations. Many of its trails originated as Native American travel routes, offering a rugged experience for hikers seeking uninhabited conifer forests and mountain meadows.
Yes, Tehama County features significant bodies of water. North Yolla Bolly Lake is a small, challenging-to-reach lake below the peak of North Yolla Bolly. Black Butte Lake is a scenic recreational area with 40 miles of shoreline, perfect for various water activities. The Sacramento River, a major salmon spawning river, also runs through the county.
Several natural monuments provide excellent viewpoints. The summit of Brokeoff Mountain offers impressive views of Mount Shasta and Mount Lassen. The Cub-Butt Divide ridge, part of the Pacific Crest Trail, is known for its expansive views along open ridgelines. Additionally, the Volcanic Rock Columns also serve as a viewpoint for unique geological formations.
Permit requirements can vary, especially for areas within national parks or wilderness areas. For example, while general access to Lassen Volcanic National Park may require an entrance fee, specific activities like backcountry camping might need permits. It's always best to check the official website for the specific natural monument or park you plan to visit for the most up-to-date information on permits and fees.
Hiking difficulties range from easy to challenging. Trails to summits like Brokeoff Mountain and North Yolla Bolly Lake are considered challenging. Intermediate trails include those leading to Mill Creek Falls and along the Cub-Butt Divide ridge. There are also easy hikes available, such as the Mill Creek Falls Trail (an easier section) and the Yana Trail, as highlighted in the Easy hikes in Tehama County guide.


Find even more amazing natural monuments in Tehama County by checking out the top Highlights region by region:
Extend your search for the best caves by checking out these guides of the top ones in Tehama County: