Lampropeltis pyromelana knoblochi, or the Sonoran mountain kingsnake or Chihuahuan mountain kingsnake, is a species of colubrid snake residing in western North America. It is a coral snake mimic, having nearly the same pattern on its body, except instead on yellow, the kingsnake has white crossbands. As its name suggests, the Sonoran mountain kingsnake lives mostly on the mountains of its relatively small Sonoran Desert region, in Sonora, Mexico.