A map of the states and provinces affected by the <a href="https://en.wikipedia.org/wiki/2003_North_America_blackout" class="extiw" title="w:2003 North America blackout">w:2003 North America blackout</a>.  
The map shows an entire state or province as red, when in some cases only a small portion (e.g. <a href="https://en.wikipedia.org/wiki/New_Jersey" class="extiw" title="w:New Jersey">NJ</a>) may have lost power.  This greatly exaggerates the actual area of the blackout.  This may also give the impression that power grids are aligned with political boundaries, which is incorrect.
<a href="//commons.wikimedia.org/wiki/User:Lokal_Profil" title="User:Lokal Profil">Lokal_Profil</a>
CC BY-SA 2.5
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