It was the end of March and beginning of April 1999 that Chuck Gillen and me went on an unplanned, impromptu trip to the Lacandon rain forest.  That is the area of southern Mexico (Chiapas), which hosts the ruins of Palenque, Bonampak and Yaschilan. We did it with the support service local guides from Palenque which was our base camp. We had the opportunity to sail on the Usumacinta River that serves as the border between Mexico and Guatemala on our way to Yaschilan. Chuck we