If you get down to Seattle and Beacon Food Forest you can also look up Community Orchard of West Seattle, on the campus of South Seattle Community College. It's in the NE corner of the campus, bordering a greenbelt, and is not actually affiliated with the college.
It was installed in 2011 and is a community-maintained food forest of ~6,000 sq ft. For more info: www.foodinwestseattle.org It's nice to see an actual food forest design maturing.
"It is, of course, one of the miracles of science that the germs that used to be in our food have been replaced by poisons." - Wendell Berry