Map showing the boundaries of the Eastern Michigan University Historic District in Ypsilanti, Michigan, United States.  The <a href="https://en.wikipedia.org/wiki/historic_district_(United_States)" class="extiw" title="en:historic district (United States)">historic district</a> is listed on the National Register of Historic Places.  Boundaries are derived from the <a rel="nofollow" class="external text" href="https://www.openstreetmap.org/?lat=42.24674&amp;lon=-83.6243&amp;zoom=16&amp;layers=M">map</a> attached to the district's National Register nomination form.
<a href="https://en.wikipedia.org/wiki/opestreetmap" class="extiw" title="w:opestreetmap">opestreetmap</a>
CC BY 2.0
Screenshot of OpenStreetMap's <a rel="nofollow" class="external autonumber" href="https://www.openstreetmap.org/?lat=42.24674&amp;lon=-83.6243&amp;zoom=16&amp;layers=M">[1]</a>, with district boundary lines drawn by uploader