The Oregon Topo map series is free a set of topographic GPS maps for selected regions of the state of Oregon, currently covering the Portland Metro and Astoria/Warrenton areas. These maps are built from some of the most modern and detailed map data available, providing land contour and water features that are comparable to USGS 1:24k topographic quads. Selected areas include current data for roads and parks.

These maps are currently available for Garmin GPS units only.

Please consider supporting my work

The Oregon Topo map series is free for your use, but a donation to offset my costs in GIS software and data, as well as my time, would be greatly appreciated.