Gilaopolis
The Gilaopolis is an obscure creature from Lumberjack Folklore. They are thought to look like a gila monster, but are capable of growing to the size of a large calf. Some accounts say they have breath hot enough to melt cans.
Citations:
A Treasury of Western Folklore. United States, Crown Publishers, 1975.
Bowman, James Cloyd. Pecos Bill: The Greatest Cowboy of All Time. United States, Albert Whitman, 2017.