Greyhills Academy High School is a Native American boarding high school (grades 9âÂÂ12) in Tuba City, Arizona on the Navajo Nation. It is operated by the Western Navajo Agency, a tribal agency working in affiliation with the Bureau of Indian Education (BIE), which funds the school.
A radio station, KGHR 91.3 FM, is associated with the school.
The school has a dormitory and has boarding students.