On my return I found the men who had gone to Casas Grandes back already, bringing with them some provisions and the first mail for three months.
Two miles east of our camp obsidian was found _in situ_.

It was not in the natural flow, but in round, water-worn pebbles deposited in the conglomerate.

Many of these had been washed out and had rolled down the hill, where a bushel of them might be collected in a few hours.

The outcrop does not extend over a large area, only about two hundred yards on one side of the bank.
On January 22d I started eastward toward the Mormon settlement, passing the watershed at a height of 8,025 feet.

After fifteen miles of travel we arrived at the Mormon colony called Pacheco, and situated on the Piedras Verdes River.