The western toad and the Cascade frog are threatened species. It is home to the Cascades Frog and the Western Toad, which are threatened species. The eyes on the Western Toad are horizontal, unlike other toads who have vertical pupils. There are also amphibian species here, such as the western toad and western painted turtle. Three amphibians are found in the area&colon; Arboreal salamander, California newt and western toad. A prominent mid-dorsal stripe is lacking in this species, unlike the Western toad. The only species of toad in Alaska is the Western Toad. The boreal toad ("Anaxyrus boreas boreas") is a subspecies of the western toad ("Anaxyrus boreas"). In the mountains of Colorado, the largest western toad populations usually occur from about elevation.