Big Obsidian Flow Trailhead and Interpretive Site

Area Status: Open
This area is Open

At a mere 1300 years old, the Big Obsidian Flow is the youngest lava flow in Oregon.  A one-mile interpretive trail climbs up and onto this impressive lava flow of obsidian (black glass) and pumice. The Newberry Crater Trail also passes through this site, which connects to the Lost Lake Trail.

This is also the location of the Big Obsidian Flow Ampitheater wherer ranger talks are featured throughout the summer. A current schedule of these lectures can be found at the Paulina Visitor Center. 

The site also features several picnic tables and a toilet.

Recreation Fee Site: Parking at this site requires a recreation pass. Passes are NOT available at this site, but can be purchased from Forest Service offices or vendors. Please check here for more information about recreation passes and where they can be purchased.

Acceptable passes include:

  • $5 Day Pass
  • Northwest Forest Pass
  • Interagency Annual Pass
  • Interagency Senior Pass (America the Beautiful, Golden Age)
  • Interagency Access Pass
  • Interagency Military Pass
  • Every Kid in a Park Pass
  • Northwest Forest ePass

At a Glance

Open Season: June
Usage: Medium-Heavy
Closest Towns: Bend, OR
Water: No
Restroom: Vault Toilet
Passes: Recreation Passes may be used as a form of fee payment

General Information

General Notes:

For more information call Lava Lands Visitor Center:

  • 541-593-2421


From Bend, OR: Travel 24 miles south on Highway 97, then 15 miles east on County Road 21.

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