A few thousand years earlier, eight or ten, Canon Diablo crater was formed in Colorado by a missile from the heavens which wiped out all life within a thousand-mile radius.
"Long Ago, Far Away"
William Fitzgerald Jenkins AKA Murray Leinster
Diablo singers, about fifty fine voices.
"Sixty Years of California Song"
Margaret Blake-Alverson
This second and greater peninsula comprises the Monte Diablo and Coast ranges, separated from the Sierra elevation by the alluvial soil of the low-lying valley of the San Joaquin.
"Complete Story of the San Francisco Horror"
Richard Linthicum Trumbull White Samuel Fallows