Lava Cast Forest

Newberry Volcano formed more than a half-million years ago—and has remained an active volcano, just east of La Pine, ever since. Today, the shield volcano is the heart of the broader Newberry National Volcanic Monument—and nowhere are its effects easier to see or understand than from along the Lava Cast Forest Trail on its northwestern flank.

The largely shade-free Lava Cast Forest Trail is a one-mile, wheelchair-accessible (paved) path that heads through the heart of what was once a grand forest. But roughly 7,000 years ago, as Newberry erupted and sent lava in the surrounding landscapes, it burned through many of those trees. As the lava cooled, it formed what are called tree molds—basically, smooth outlines in the rock of where trees once stood.

The Lava Cast Forest Trail heads through this eerie, yet beautiful landscape. Along the way, you’ll pass numerous tree molds, springtime wildflower displays, and a broader lava flow comprising jagged rocks and newer stands of ponderosa pine.

Before visiting, download a brochure from the Lava Cast Forest’s official website for interpretive information that explains what you’ll see at various points along the trail. And keep in mind that the trail is typically open between May and November—though early-season snow may limit access in late October or early November. If visiting during this time, contact the Deschutes National Forest to check on the latest conditions.