USGS digital orthophoto of Ashland Municipal Airport in Oregon
<a href="//commons.wikimedia.org/w/index.php?title=United_States_Geological_Survey&amp;action=edit&amp;redlink=1" class="new" title="United States Geological Survey (page does not exist)">United States Geological Survey</a> (USGS)
2013-06-26
<a rel="nofollow" class="external text" href="https://www.topoquest.com/map.php?lat=42.18845&amp;lon=-122.65692&amp;datum=nad83&amp;zoom=4">USGS via TopoQuest</a>