Settlements tend to be near rivers . Rivers are in valleys , so sediment is constantly falling down into the valleys . The landmass isn ' t ' elevating ', if anything it ' s falling as the sediment comes from the hills and the mountains . There could also be geological reasons that it ' s underground Pompeii , for example , was covered in ash from the erupting Mt Vesuvius . Earth quakes and land slides can also bury settlements . <| sep |> Corrupt elite confirmed for plantpeople . <| sep |> It was more like Urgot was pretty trash for a while , and then was all of a sudden very strong and pickedbanned all the time , and then that faze died out but Keane kept the torch alive by taking him into midlane from time to time as a countercarry .