"The region behind or south of the two converging ranges of low hills that come together just northwest of Uxmal is called the Puuc (Maya hilly country).

During the eleventh and twelfth centuries, this section of Yucatan supported the densest population in the entire northern half of the Peninsula, a population which was gathered around many ceremonial centers, the most important of which was Uxmal...and the second largest, Kabah, located only nine miles southeast of Uxmal and connected therewith by a stone causeway.

Kabah was doubtless a dependent city of the Xiu state, since it was so near the Xiu capital [Uxmal] and, moreover, is connected with it by the causeway just mentioned."

Sylvanus G. Morley, The Ancient Maya, p.341-2