1. Department of Anthropology, California State University, Los Angeles, CA, USA
2. Instituto Nacional de Antropología e Historia (INAH), Centro Baja California, Mexicali, Mexico
3. John Minch and Associates, Altadena, CA, USA
4. PanGIS, Carlsbad, CA, USA
5. Department of Anthropology and Museum of Natural and Cultural History, University of Oregon, Eugene, OR, USA