USA -Major Attractions and Hikes of the West - A Travel Guide
Lava Beds National Monument
Location: 150 miles northeast of Redding, California
Features: lava tubes, ice caves
This is a fantastic place to explore. Lava Beds National Monument is actually only a huge lava field, but below the ground are lots of caves, tubes and even ice caves. It's a fascinating thing to go only 100 feet into the ground an to have ice there while the outside temperature is in the high 90's. So you should defenitely bring a flashlight (and backup batteries) and go down in some of the caves. If you feel like, you can even take guided tours through the huge cave system of Lava Beds National Monument.
Arches National Park / Bryce Canyon National Park / Canyonlands National Park / Capitol Reef National Park / Crater Lake National Park / Death Valley National Monument / Grand Canyon National Park / Lassen Volcanic National Park / Las Vegas / Lava Beds National Monument / Mesa Verde National Park / Monument Valley / Mount Rainier National Park / Olympic National Park / Petrified Forest National Park / Point Lobos State Park / San Francisco / Salt Lake City / Seattle / Sequoia National Park / Valley of Fire State Park / Yellowstone National Park / Yosemite National Park / Zion National Park