Crystal Springs Creek in Southeast Portland. Stream flows in street right-of-way with houses accessed by simple bridge.
Additional pictures of Crystal Springs Creek

Headwaters of Arnold Creek in Southwest Portland. The creek sits down an embankment only 200 feet from where this picture was taken. In the foreground is an unused street right-of-way - it still shows up on many city maps. Only a small strips of natural forest can make a very big difference in people's subjective response to urban life.