Within the structure is enough room for a very cosy base and close by is a thrall camp and plenty of resources. South of the Ruins is another building left by the Ancients. The top of this structure has huge amounts of flat space ideal for building. The West part has a really cosy looking room whilst the central part has a large room but also access to the very top. The Southern Aqueduct has two main building areas.
Ironstone, brimstone, and more importantly - The Pirate Ship which has each thrall type and Level 4 thralls also spawn there.
Not because the building space within it is huge but It has almost everything around your location to support a well established clan. The River Cave is a very competitive location. You can build anywhere within this cave but the best location is up on the ledge. The Desert Cave has been popular for a while but still overlooked on some servers. Located at the base of The Cursed Way structure, you need to climb over rocks to access it. There are countless areas where you can lay your first foundations under the very noses of your enemies. In Conan Exiles you can really think outside the box when it comes to base location.