User blog comment:Pholix/create a new area/@comment-2252698-20100824145654/@comment-2158814-20100824150549

Ruins would have around 10, and one of the locations are on top an old building

Sand dunes will have 6, But 4 of those areas are massive, 1 for the base and the other for an underground nest dug by a Daimyo to escape the heat.