In this week's episode we feature Fred Nilsen. Fred retired in 2008 as Forest Park's Chief Arborist, a job that he held for 22 years. In the early 1900's, John Charles Olmsted proposed that the densely wooded area above Northwest Portland be designated by the city as a forest park. Dedicated in 1948, Forest Park is 5,200 acres with more than 80 miles of trails.