The insufficiency of the uplift to account for the altitude of some of the terrain now at the channel site is explained by high volume landslips similar to those that impacted northern Pakistan in 2005: earth and rocks and whole sections of the mountainside itself falling from the high Kefalonia mountains which line the eastern edge of the isthmus, down onto what once had been "Strabo's channel". Findings of ancient Greek structures now buried beneath this erosion provided part of the confirmation for the proposal, which now is to be subjected to a battery of geological tests.