On the north it contains a part of the Mogollon Mesa, which is covered with a magnificent open forest of Arizona yellow pine (Pinus ponderosa) in which there is an abundance of bunch grass and here and there are beautiful grassy parks.

The yellow pine forest, similar in character to that on the Mogollon Mesa, is found over a large part of the reserve between 7,000 and 8,500 feet altitude, and its general character is shown in the accompanying view.

North loomed up the lofty, steep rim of the Mogollon Mesa, with its cliffs of yellow and red, and its black line of timber.

According to "Regidor" (Prefect) Hernando de Mogollon's letter to the Jerome fathers, fully one-third of the "pacified" Indiansthat is, of those who had submittedhad disappeared and found a refuge with their kinsmen in the neighboring islands.