Adventures
Big Obsidian Flow
Tucked inside the caldera of Newberry Volcano, the Big Obsidian Flow is the youngest lava flow in Oregon — a glittering, mile-wide river of volcanic glass that cooled a mere 1,300 years ago. A short interpretive loop climbs a steel staircase onto the flow itself, winding between car-sized boulders of jet-black obsidian and pale, frothy pumice. From the top, the views take in Paulina Peak, Paulina Lake, and the forested rim of the caldera. It is a short walk with an outsized payoff, and one of the strangest landscapes you can stand on anywhere in the Northwest.
Lava Butte Lookout, Bend, Oregon
Rising like a cinder cone sentinel just south of Bend, Lava Butte offers one of Central Oregon's most rewarding short hikes for the payoff it delivers — a fire lookout perched atop a 500-foot volcanic cone with 360-degree views stretching across the Cascade peaks, the sprawling lava fields of Newberry National Volcanic Monument, and the ponderosa forests below. Whether you tackle the steep half-mile trail on foot or catch the seasonal shuttle to the summit, the lookout rewards visitors with a front-row seat to the region's fiery geologic past and a panorama that makes it easy to see why this spot has been used to spot wildfires — and stunning sunsets — for generations.
Lava River Cave, Bend, Oregon
Beneath the sun-scorched high desert just south of Bend, Oregon, a different world waits in total darkness—one carved not by water, but by fire. Lava River Cave stretches more than a mile through a lava tube formed some 80,000 years ago when molten rock from a nearby cinder cone drained away and left behind a hollow, cathedral-like tunnel of basalt. Step inside and the temperature drops to a steady 42 degrees no matter the season above; the desert light fades to black within a few dozen yards, and the only sounds are your own footsteps echoing off rock that's been waiting patiently since long before any trail led here. Whether you're chasing an underground adventure, an escape from summer heat, or just a genuinely strange corner of Oregon's volcanic history, this cave beneath Bend delivers all three.