100m by 100m
<a href="//commons.wikimedia.org/wiki/User:Connormah" title="User:Connormah">Connormah</a>
CC BY 3.0
<a href="//commons.wikimedia.org/wiki/User:Connormah" title="User:Connormah">Connormah</a> based on <a href="//commons.wikimedia.org/wiki/File:1_ha.jpg" title="File:1 ha.jpg">File:1 ha.jpg</a>