Kelaktar is the word used to describe the fortified settlements around which Fathide Ogre society is organized. Though kelaktars can differ greatly in size and shape, they are characterized by an encircling wall typically made of stone. So central are these types of cities to Fathide culture, that even nomadic ogres (such as the Wild Ogres of the Northern Pass or pre-centaur ogre nomads in the Forbidden Plains) would move between seasonally-vacant fortifications.
In settled ogre society, the kelaktar forms the most basic unit of administration. The concept of a farming village or any other type of outlying hamlet is almost completely absent from Fathide society. Ogre husbandry is typically transhumance in nature, with animal herds alternatively grazed out in the land surrounding a kelaktar, and brought back in to be butchered or otherwise processed. Agriculture is very similar; outside of the harvest and sowing seasons, unneeded labor will typically move back to the kelaktar until they are needed again. For these reasons, Fathide ogres have historically been some of the most urbanized cultural groups on Halann.
Naturally, the most important kelaktar within the Ogre Valley is that of Maghargma City, which was built out of and around the cloud giant city that crashed into the Serpentspine. Olkhalebuhr is another famed kelaktar, built into the mountains further north of Maghargma City, and is best known for being the source of some of the highest quality iron in the Forbidden Plains; alongside imports from Haless it constitutes a major source of iron for the Lake Federation. The kelaktar of Rijansvi is notable both for its position as one of the only kelaktars to ever have been owned by wild ogres, as well as its appearance, with most of its walls covered in a bronze gilt.
Some scholars will attribute this behavior to a traditional need for the slow-moving ogres to properly defend themselves out on the steppes of the Forbidden Plains. However, the far more popular theory is that such an urban focus is a cultural quirk inherited by the ogres from their True Giant progenitors. The primary piece of evidence for this argument can be found in the Shirgrii of Haless. Though separated by the Serpentspine and thousands of years without contact, the Horned Ogres have a similar practice of congregating in fortified temple complexes, suggesting some ancient shared origin to the practice.