Note X-31 — Chapter X · ANTIQUITIES OF THE NORTHERN MEXICAN STATES.
Reading edition
The explanation of the plan by the lettering given in Nebel's work is as follows: A i., A ii., A iii., A iv. Temples and structures connected therewith. B. Enclosing walls. C. Walls supporting terraces. D. Pyramids in the interior of temples. E. Isolated Pyramids. F. Ruins of dwellings. G. Stairways. H. Ancient roads. J. Kind of a 'plaza de armas.' K. Fortifications. L. Small stairways leading to the court of the temple. M. A small altar. N. Ancient foundations. O. Batteries in the form of flat roofs (azotéas). P. Modern cross on the summit of the hill. Q. Well. R. Large hall with 11 columns to support the roof. S. Two columns. T. Rock. U. Stream.