This was his highest point.

Turning about, he descended to the steamboat camp and called that place the head of navigation, not that he did not believe a steamer might ascend, light, through Black Canyon, but he considered it impracticable.

Running now down-stream in the Explorer, the expected pack-train was encountered at the foot of Pyramid Canyon, and a welcome addition was made to the supplies.
* It may be of interest to state that Lieutenant Ives became an officer in the Confederate Army, and was killed in one of the battles of the Civil War.
The steamboat was now sent back to the fort and Ives prepared for a land journey, which led him eastward over much the same route that Garces had traversed so long ago on his march to Oraibi.

Ireteba was his guide.
They went to the mouth of Diamond Creek, where they had their first view of the Grand Canyon, or Big Canyon, as they called it, of which Ireteba had before given them some description.

The illustrations given in Ives's report of both Black and Grand Canyons are a libel on these magnificent wonder-places, and in no way compare with the lieutenant's admirable pen-pictures.