Photo 1.  Prof. Linda Manzanilla (L), and Prof. William Sauck (R) with GSSI Ground Penetrating
Radar central processor in van at Chichen Itza.  Photo by Lawrence G. Desmond, 1997.

Photo 2.  David Maki constructing 60 Mhz radar antenna in Merida, Yucatan.
Photo by Lawrence G. Desmond, 1997.