The Big Obsidian Flow trail is located in the Newberry National Volcanic Monument which is just outside of La Pine, Oregon.
The Big Obsidian Flow is a 1 mile interpretive trail that takes you through a field of obsidian and pumice. There are informational signs along the way and a nice view of Paulina Lake.
From the parking area take the paved trail to a metal staircase where you will enter the flow. From here the trail is rocky and can be pretty dusty during the dry months. The trail loops through the flow and you will see chunks of obsidian and pumice of all size. There are a few small shrubs, trees and flowers that have managed to grow out in the field. There are a few viewpoints on the trail as well.
Please follow the posted rules- this place is very fragile and unique.
Distance: 1 mile (easy)
Elevation: 125 feet (easy)
Pet Friendly: No- there are many signs warning against taking your dog on this trail. The obsidian is very sharp and can easily cut your dogs paws.
Good For: All ages
Bathrooms: Yes in the parking area
Parking Fee: NW Forest Pass or Newberry entrance pass
Seasons: Summer through early Fall