This is a high-resolution version for printing. (See small and medium versions below.) Map shows the course of the Columbia Slough, tributary of the Willamette River, Oregon, through North Portland, Gresham, and Fairview. Tributary creeks, major street intersections, neighborhoods, parks, natural areas, and other landmarks are indicated. The route has been artificially straightened. Each of the panels is oriented differently so that the image fits on a horizontal line.
USGS and Northwesterner1
Aerial photographs from the US Geological Survey. I annotated the map myself using various sources and my original contributions are hereby released into the public domain.