Here's the lovely, two-tier yurt that Bill Coperthwaite helped us build in October of '09. (And here are my followup explorations that adapted the design by going back to traditional sticks and basket as well as incorporating earthen plasters -- simpler to build, and better performance and comfort in wetter climates.)  It's on the grounds of the Ancient Arts Center near Alsea, just a long leap over a couple of ridges, into the next drainage south of us (the Alsea River). We finished the woven willow and mud walls in May of '09. If you want to come help, we'll be having more workshops . . .