From I-5 Heading South:
Before you get to Eugene, take the Beltline Highway Exit heading WEST
Beltline will take you around Eugene and then T's at Highway 126
Turn RIGHT at the T onto 126
When you get to Veneta, OR, turn RIGHT onto Territorial Highway
(There's a strip mall there that includes Ray's Food Place)
After about 1 mile, turn LEFT onto Suttle Road 
(Landmark is a little brown convenience market)
After another mile, turn LEFT onto Arrow Road
Take the next left onto Chickadee Lane (You're out in the sticks now!)
Watch for "Beaver Family" signs.
(You can also google "Elmira, Oregon" and get a good view of this.

FROM I-5 GOING NORTH Go into Eugene, Get on Highway 126 going WEST, and 
follow above directions from there.