Note 176 — Chapter 30
Reading edition
Eighty leagues would probably be a reasonable estimate of the distance from the Pecos to the Rio Grande, which the travellers had now reached. It would seem strange that no mention is made of the cañon of the latter stream (which hereabouts flows through a territory four thousand feet above sea level), were it not for the fact that they had become thoroughly inured to suffering and hard travelling; nevertheless, the terribly rough country through which they had just been guided from stream to stream is commented on, while the fact that the Rio Grande here "flows between some ridges" is mentioned farther on.