in J Brom Soc 65(4): 249-256. 2016
In January 2013 we explored the road from Tarapoto to Yurimaguas, Peru for several days. First you have to pass a mountain ridge of about 1400 m elevation with mountain forest, then going down gradually to 150 m elevation in Yurimaguas on the bank of Rio Huallago, one of the tributaries of the Amazon River. It is odd to realize that the Amazon River has still to pass the whole continent on a difference in elevation of less than 150 m. Read more.