The Lava Beds near Mt. Shasta are worth a look.  I enjoyed hiking in the lava tubes. Just south of Klamath Falls. 
Stephen 

     On Saturday, August 8, 2015 12:09 AM, Karl Wolz <wolzphoto@Q.COM> wrote:
   

 Lave trees around Bend, OR; Crater Lake; Mt Rainier; Columbua River Gorge, for starters. 

Karl Wolz
Sent from my electronic umbilicus

> On Aug 7, 2015, at 8:31 PM, Tyler Hardison <tyler@SERAPH-NET.NET> wrote:
> 
> Angela and I are headed out next Wednesday from Santa Cruz, CA to Walla
> Walla, WA.
> 
> Anything that we should detour for along the way?
> 
> We plan to head up 101 through Mendocino before making our way eastward to
> Klammath Falls and up to Walla Walla.
> 
> --t