The _Canonita_ Left Behind--Shinumo Ruins--Troublesome Ledges in the River--Alcoves and Amphitheatres--The Mouth of the San Juan--Starvation Days and a Lookout for Rations--El Vado de Los Padres--White Men Again--Given up for Lost--Navajo Visitors--Peaks with a Great Echo--At the Mouth of the Paria 135.