Here's the built-in map for Sodden Archipelago, the first of the two overlands in Scars of Destruction. I'm not sure how you usually get these built-in maps. I full-screened the in-game map, copied, cropped, and scaled it down.
Code:
<ImageStyle Name="exp21_rgn_sodden_islands" displayname="Sodden Archipelago" zonerect="-1321, -917, 1311, 1034">
<ImageFrame Source="images/maps/map_exp21_rgn_sodden_islands.dds" SourceRect="0,0,800,600"/>
</ImageStyle>