|Durango Mountain Pine Snake - Range
There is often some confusion about the geographic distribution of P.d.deppei and P.d.jani in relation to one another. The ranges of these two subspecies were physically separated by the vast Mexican Plateau as the last ice sheet retreated. Both of these formidable mountain ranges are extremely difficult to access over much of their respective ranges and hide many herpetological secrets. The terrain occupied by P.d. deppei is notoriously variable over even short distances and barely explored from a herpetological point of view. P.d.deppei's range/habitat closely overlaps that of the Variable Kingsnake, Lampropeltis mexicana "thayeri."