One road in California and Oregon passes 5 volcanoes, 800 caves, and the deepest lake in America

It’s one of America’s top 42 drives

Five volcanoes, 800 caves, and the deepest lake in the country sit along a single road that runs from Northern California into Southern Oregon.

The Volcanic Legacy Scenic Byway covers roughly 500 miles through the Cascade Range, and it holds one of the highest honors a scenic road can get in the United States: All-American Road status. Only 42 roads in the nation carry that title.

This one connects two national parks, a national monument, wildlife refuges and state parks across 11 regions. The stops between are what make the drive worth every mile.

Eruptions and gold built this landscape

Hundreds of thousands of years of volcanic eruptions in the Cascades shaped everything you see from the road.

The southern end starts at Lassen Volcanic National Park in Northern California, and the northern end finishes at Crater Lake National Park in Southern Oregon.

Between those two parks, you pass Mount Shasta, the Klamath Basin, and lava fields spread across the northeast corner of California.

Old mining towns like Yreka still sit along the route, left over from the California Gold Rush.

Lassen holds all four volcano types in one park

Lassen Volcanic National Park has something no other place in the country can match: all four types of volcanoes in one park. Shield, composite, cinder cone and plug dome volcanoes all sit within its borders.

Lassen Peak itself rises to 10,457 feet and ranks among the largest plug dome volcanoes on Earth. It last blew between 1914 and 1917, one of the most recent eruptions in the lower 48.

More than 200 lakes fill the park around it.

Walk through boiling mud at Bumpass Hell

A 3-mile round-trip trail with boardwalks leads you straight into Bumpass Hell, the largest hydrothermal area in Lassen. Boiling mud pots pop and hiss beside bright turquoise pools, and steam vents shoot from the ground.

The place got its name from Kendall Bumpass, who broke through the thin crust and burned his leg on his first visit.

If you want a quicker look at volcanic heat, Sulphur Works sits right next to the main park road, where roaring fumaroles blast from the hillside.

Climb 43 switchbacks to a 10,457-foot summit

Lake Helen sits near the base of Lassen Peak, and its turquoise water makes it one of the most striking alpine lakes in the park. From there, the Lassen Peak Trail climbs nearly 2,000 feet over 43 switchbacks to the top.

On the park’s eastern side, Cinder Cone rises over 700 feet and looks down on the colorful Painted Dunes and the Fantastic Lava Beds below.

Kings Creek Falls, a 2.4-mile round-trip hike, takes you through meadows to a 50-foot waterfall tucked in a shady canyon.

129 feet of water pouring through solid rock

McArthur-Burney Falls Memorial State Park sits along the byway between Mount Shasta and Lassen Peak. Burney Falls drops 129 feet, but the real surprise is how the water gets there.

Underground springs push 100 million gallons through the rock face every single day. Water pours over the top and also seeps out from dozens of springs in the cliff itself, creating a wide curtain of mist you can feel from the trail.

The falls earned National Natural Landmark status back in 1984.

Mount Shasta rises 14,163 feet over everything

You can see Mount Shasta from more than 100 miles away in every direction. At 14,163 feet, it holds the title of the most voluminous volcano in the entire Cascade Range.

Seven named glaciers wrap around its slopes, and hot sulfur springs near the summit prove it is still active. Over the past 10,000 years, it has erupted at least once every 800 years.

The most recent activity happened roughly 3,200 years ago, so the mountain is quiet now, but not finished.

Crawl through 800 caves carved by lava

Lava Beds National Monument in northeastern California sits on top of the largest concentration of lava tubes in North America.

More than 800 caves formed from eruptions on the Medicine Lake shield volcano over the last half-million years.

About two dozen caves near the visitor center are open to explore, ranked from beginner-friendly to expert-level. Mushpot Cave, the only lit cave, gives you a good starting point.

Catacombs Cave stretches nearly 7,000 feet and draws experienced cavers who want the real thing.

A million birds pour through the Klamath Basin

The Klamath Basin straddles the California-Oregon border along the byway, and six national wildlife refuges protect the land.

Roughly 80 percent of the Pacific Flyway’s migrating waterfowl pass through here every spring and fall.

During peak fall migration, more than 1 million birds fill the sky, including snow geese, tundra swans, sandhill cranes and white pelicans.

The basin also draws the largest wintering concentration of bald eagles in the lower 48, with over 500 eagles gathering when the cold sets in.

Paddle Oregon’s biggest lake by canoe

Upper Klamath Lake stretches nearly 30 miles long and 8 miles wide, making it the largest freshwater lake in Oregon.

A 9.5-mile canoe trail winds through wetlands and marshes at the lake’s northwest corner, and you can spot river otters, mink, mule deer, bald eagles and American white pelicans from the water.

Anglers head straight for Pelican Bay, where trophy-size native rainbow trout run big enough to make the trip worth it on their own.

1,943 feet deep and no rivers feed it

Crater Lake sits 1,943 feet deep. No other lake in the United States goes deeper.

It fills the caldera left behind when Mount Mazama collapsed after a massive eruption about 7,700 years ago.

Rim Drive, a 33-mile road, loops the entire caldera and gives you more than 30 overlooks of that deep blue water and the volcanic formations around it.

Wizard Island, a cinder cone rising 767 feet above the surface, is reachable by boat in summer.

That blue color has a scientific explanation

Crater Lake’s deep blue comes from its extreme depth and purity. Sunlight penetrates the clear water and scatters blue wavelengths back to the surface.

No streams flow in or out. Rain and snowfall alone fill it, with an average of 43 feet of snow falling each year.

The national park was established in 1902, making it the fifth oldest in the country.

The Klamath people hold a deep connection to this place, with legends telling of a battle between the gods Llao and Skell that ended with the mountain’s collapse.

Drive the Volcanic Legacy Scenic Byway

You can pick up this 500-mile All-American Road at Lassen Volcanic National Park in Northern California or start from Crater Lake National Park in Southern Oregon.

The byway follows the Cascade Range through volcanic peaks, lava fields, alpine lakes, waterfalls and vast wildlife refuges. Plan for several days if you want to do it right.

The route passes through small mountain towns and national forests, and you can find maps and trip planning details on the official website before you go.

This article was created with AI assistance and human editing.

Read more from this brand:

• California’s gnarliest mountain drive dares you to cross a skinny lane at 8,700 feet
• Ishi: the ‘last wild Indian’ who emerged from California’s lava fields in 1911
• Mount Shasta’s most badass climb happened in 1856 (and it involved corsets)