Thunder Gap cuts through a section of Murasa's Wall known as the Pillar Plains. There the wall is cracked and broken into thousands of massive pillars, the tops of which are grassy plains buffeted by sea winds. For generations a clan of kor dwelt atop the pillars living a simple herders' lifestyle, a strange blend of the pastoral and perilous. They crossed between the pillars on bridges they crafted of rope and bone, or they swung from leaning menhirs (large, upright monoliths) to cross the gaps between pillars the oxen could simply leap. Living in simple tents and herding the hardy pillarfield oxen, they received all else they needed through trade with travelers through Thunder Gap. Now the campsites are abandoned, the oxen run feral across the pillarfields, and only a memory of the kor haunts the Pillar Plains.