This template is within the scope of WikiProject Maps, a collaborative effort to improve the coverage of Maps and Cartography on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.MapsWikipedia:WikiProject MapsTemplate:WikiProject MapsMaps articles
Doesn't the construct |date={{{accessdate|}}} imply that the underlying map date is the same as the date that the editor cited it? that the information visible on the map is current as of the date in |access-date=? I rather suspect that USGS maps are not so current.