On June 14, 1914, three men climbed Lassen Peak to see why a seemingly dormant volcano had started rumbling 16 days before. Now, peering into a newborn crater, they felt the ground tremble.

Located in Lassen Volcanic National Park, you can hike Lassen Peak, but roads in the area are often closed because of the weather. Hikers and climbers are warned to prepare for harsh conditions ...

Packing for Lassen varies by season. Most of the park is blanketed by snow from November to April (or longer), and the trail to Lassen Peak is a snowshoe-only adventure well into the spring and ...

Hikers on the Lassen Peak Trail at Lassen National Park. What not to miss: The challenging 5-mile round-trip Lassen Peak Trail offers spectacular views. On a clear day, hikers can see Mt.

What not to miss: The challenging 5-mile round-trip Lassen Peak Trail offers spectacular views. On a clear day, hikers can see Mt. Shasta, another active volcano more than 100 miles away.

Tired of crowded national parks, or want something new? Here are less visited national parks in California, what months to visit and what not to miss.