We camped upstream of the Yesojirca Narrows on the first night of our trip (not counting our camp the night before at the gravel pit). It had rained that night and was still raining and cool in the morning.
We had been told about the considerable excitement that the Narrows had provided on the preceding trip, where the first boat had failed to stop and scout the rapid. That boat had bridged (got stuck sideways between the opposing rock walls of the Narrows), causing two of the following boats to flip as they ran into and got stopped by that bridged boat.
Like rivers elsewhere, trash is found along the banks of the Rio Marañon, and much of it consists of plastic bottles and containers. While many of us, in the United States, make sure that our trash gets to the dump, this isn’t happening to the same extent (or at all) along the Rio Marañon and its tributaries, where trash is often dumped down a bank and into the river, for lack of a better disposal method. In our first week or two on the river, every riverside bush and tree was festooned with scraps of plastic that had been caught-up on their thorns and branches. This trash load, which had been deposited into the river by the upstream riverside villages, lessened as it was strained-out and as we floated downstream into a less-populated canyon.
Villages were often located on or close to ridge tops, far above the canyon bottom, where springs and spring-fed creeks were to be found. Eucalyptus trees, an import from Australia, marked every village. Dry farming of corn took place on the steep hillsides. Many of the villages were reached from the plateaus and ridges above by rough dirt roads, and most had electricity and cell phone transmitters. At night, we would see the village lights twinkling far off and high above.
Movie of the confluence of the Rio Yanomayo, a good-sized stream which descends directly off of the Cordillera Blanca:
Here is the link to the following post: