San Diablo

Hi everyone,
Just a quick question, does anyone have any sources regarding San Diablo? I live here in the southwest and digging into the witchcraft and practices of the Hispanic culture that surrounds me. San Diablo is something I’ve only come across in limited and vague sources in terms of in a witchcraft style. Keep in mind although I live in the SW my Spanish at this point is very limited. Thanks in advance

Mike