Bufo Microscaphus is a species of toad that is native to the southwestern United States and northern Mexico. It is also commonly known by several other names such as the Sonoran Desert Toad, Colorado River Toad, and Giant Toad. The toad is known for its large size, warty skin, and potent toxins, which have led to both its popularity in certain subcultures and its infamy as a drug source. Other synonyms for Bufo Microscaphus include Incilius alvarius, Bufo alvarius, and Ollotis microscaphus. Despite its notoriety, the toad is an important part of many ecosystems and is considered a valuable indicator species for environmental health.