The South Wall is the southern escarpment of the Thundering Mountains — a near-vertical cliff face where the massif drops sharply onto the plains of the Dalizi Highlands below. Seen from the south, it presents as a continuous dark ridge, its upper edge jagged with wind-fractured rock towers. From the top, the full breadth of the Dalizi Confederation is visible to the southwest on clear days.
The escarpment acts as a hard boundary between the lower Dalizi Highlands and the high interior of the Thundering Mountains. Passes through the South Wall are few and steep; the rock fractures horizontally here, creating ledges but few negotiable gradients. Traffic heading north from the confederation's eastern states routes through Fool's Pass rather than attempting the wall directly.