Feb. 13th 2017 – We arrived in Manaus Brazil about 900 miles up the Amazon River.  Two large rivers come together at Manaus.  One directly beside the city has brackish water and no silt the Negro (Black) River.  It joins the Amazon which is very silty and brown just south of of city. Today we traveled up river for about 45 min. to visit part of the rain forest (Jungle).  The Rio Negro Bridge links the cities of Manaus and Iranduba in Brazil.  It does not cross the Amazon River.  There are no bridge that cross the Amazon river.