The ghost deer is supposedly an animal, or cryptid, that lives in the canyons of Mount Eddy in northern California.
According to legend, when shot at, bullets will fly right through the deer, or miss it. The "animal" also seems to appear and disappear with no traces of it. Attempts have been made to track its prints, only to find that they simply "end" at one point.
Ghost deer Wikipedia
The ghost deer, according to legend, is a buck that looks something like a large elk with large antlers ending in 10-12 points, in contrast to the relatively small, normal Californian deer. Most hunters believe it weighs 240 to 250 pounds, though others believe it is actually a ghost.