Photo 7.  Castillo Pyramid, east face.  Below the rough surface vegetation is the approximate
location of the buried trench detected by GPR.  Photo by Lawrence G. Desmond, 1997.

Photo 8.  David Maki (L), and Tim Tucker guiding 60 Mhz antennas from west to east on east side
of the Castillo Pyramid.  GPR unit is in VW van.  The area being surveyed is where a subsurface
trench was detected.  Photo by Lawrence G. Desmond, 1997.

Photo 9.  Tim Tucker (L) and David Maki guding 60 Mhz antennas.
 Photo by Lawrence G. Desmond, 1997.