Ballistae and Storm Mecha

Howling Wind Canyon was a massive canyon stretching a hundred li and a hundred meters wide. Both sides of the canyon were vast, barren gobi, where no grass or trees grew and howling winds roared. Connecting the two sides of the canyon was a massive bridge thirty meters wide called Howling Wind Bridge. Howling Wind Canyon was also the boundary between the Land of Wind and the Land of Rivers. Crossing this massive canyon would bring them into the territory of the Land of Wind.