It was all correct, as I very well knew and assured me that he knew all about the country.
I became much interested in my new found friend, and had him continue his map down the river.

He showed two streams coming in on the east side and then he began piling up stones on each side of the river and then got longer ones and piled them higher and higher yet.

Then he stood with one foot on each side of his river and put his hands on the stones and then raised them as high as he could, making a continued e-e-e-e-e-e as long as his breath would last, pointed to the canoe and made signs with his hands how it would roll and pitch in the rapids and finely capsize and throw us all out.

He then made signs of death to show us that it was a fatal place.

I understood perfectly plain from this that below the valley where we now were was a terrible canon, much higher than any we had passed, and the rapids were not navigable with safety.