%sites = (
  1   => { x => 65.1231, y => 23.1512 },
  2   => { x => 64.2327, y => 17.5328 },
  3   => { x => 66.1634, y => 21.2512 },
#  ...
  200 => { x => 65.6231, y => 21.8924 }
);

##</code><code>##

XX...
X....
.....
....X
...XX

##</code><code>##

XX.
X.X
.XX