abandonment. However, like Keet Seel, Betatakin was constructed of sandstone, mud mortar, and wood. Today only about 80 rooms remain, due to rock falls inside the alcove. Betatakin only has one kiva, whereas Kiet Siel has several. Betatakin was built in an enormous alcove, measuring 452 feet high and 370 feet across, between 1267 and 1286 The first excavations occurred in 1909 under Byron Cummings, University of Utah, and continued into the 1950s and 1960s under archaeologists like Jeffery Dean. During its two-decade heyday Dean estimated a maximum population of about 125 people. Discovery The site of Keet Seel was known to resident Navajos in the area for decades or longer prior to the first Anglos arriving in 1895 (the Wetherill brothers). Originally part of a ranching family from Colorado, the Wetherills' keen interest in the Ancestral Puebloans led them to pursue numerous expeditions into the heart of the Kayenta region, largely uncovering a number of sites that had remained undiscovered to Anglos until then. The Wetherills took many artifacts from the ruins which the Navajos had left untouched for centuries. Richard Wetherill is credited for selecting the term Anasazi, which refers to the ancient people (ancestral puebloans) that inhabited this region and means "Ancient Enemy Ancestors" in Navajo. It was not until 1909, after Navajo National Monument was created, that John Wetherill, Byron Cummings, and Navajo guide Clatsozen Benully first recorded Betatakin. The Wetherill Brothers made a living from giving guided tours of sites in and around the Tsegi Canyon and Utah. Later in their careers, the Wetherill brothers were largely involved in efforts for the preservation and protection of the sites that made up Navajo National Monument. The artifacts which the Wetherills had removed from the Ancestral Pueblo sites were sold or shipped to far-flung locations so that today little is known of the artifacts' whereabouts. Subsistence The Ancestral Pueblo people of this area were a sedentary group that largely based their subsistence on agriculture. Their primary crop at the sites within Navajo National Monument was maize, with beans and cucurbits also being incorporated into their diet. While the people of the Tsegi Canyon system relied heavily on agriculture for their food, they also hunted wild game that was indigenous to the area. It is thought that these Ancestral Pueblo people lived in these cave dwellings to optimize the amount of sustainable land to produce crops. By living