Col. Fawcett also describes enormous trails in the sandy banks,that we're seen and is stated by inland rubber pickers and indians who told stories about these giants which leave trails in the swampy riverbanks of five to six foot wide, the Brazilian Boundary Commission mentioned also comparable sightings of these trails what had to be, a snake of monstrous size, of at least 80 foot in length . It stays a mystery of which Colonel Perry Fawcett had seen and discovered, and is very regretfull that not better material of photographs could harden these facts and reports about these giant snakes,