CONTRIBUTIONS OF THE UNIVERSITY OF CALIFORNIA ARCHAEOLOGICAL RESEARCH FACILITY Number 41 December 1979 STUDIES IN ANCIENT MESOAMERICA, IV Edited by John A. Graham ARCHAEOLOGICAL RESEARCH FACILITY Department of Anthropoloy University of California Berkeley CONTR IBUTIONS OF THE UNIVERSITY OF CALIFORNIA ARCHAEOLOGICAL RESEARCH FACILITY Number 41 December 1979 STUDIES IN ANCIENT MESOAMERICA, IV Edited by John A. Graham Archaeological Research Facility Department of Anthropology University of California Berkeley TABLE OF CONTENTS The Great Mound of La Venta by John Graham and Mark Johnson 1 Ruins of Semetabaj, Dept. Solola, Guatemala by Edwin M. Shook, Marion P. Hatch, Jamie K. Donaldson 7 The Early Preclassic Sequence in the Ocos-Salinas La Blanca Area, South Coast of Guatemala by Edwin M. Shook and Marion P. Hatch 143 The Altun Ha Jade Plaque: Deciphering the Inscription by Peter Mathews and David M. Pendergast 197 The Swasey Complex of Northern Belize: A Definition and Discussion by D.C. Pring 215 Introductory Archaeological Survey of the Central Peten Savanna, Guatemala by Don S. Rice and Prudence M. Rice 231 i