In 2005 Arthur Mijares, from the neighboring town of Oakley, petitioned the federal government to change the name of the mountain, Contra Costa Times, October 14, 2005, "Board Decides Mount Diablo Will Keep Name", accessed 06-10-17 claiming it offended his Christian beliefs. Additionally, he claimed that Diablo is a living person, and so is banned under federal law. He suggested renaming the mountain Mount Kawukum, and later, Mount Yahweh. Suggestions by other individuals included Mount Miwok and Mount Ohlone, after local Indian tribes. Finally Mijares proposed Mount Reagan, but the board rejected it on the grounds that a person must be deceased for five years to have a geographic landmark named after them. Eventually, the U.S. Board on Geographic Names rejected the petitions, saying there was no compelling reason to change the name.
