Mysterious and Unsolved Cattle Mutilations in Wyoming

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Written By Blue & Gold NLR Team





Cattle mutilations, a perplexing phenomenon that has confounded ranchers and law enforcement since the 1950s, have been documented throughout the United States, including Wyoming. In these incidents, livestock, primarily cattle, are discovered deceased, exhibiting precise removal of specific body parts as if performed with surgical precision.

The Phenomenon

The mutilated bovine carcasses often lack ears, eyes, udders, anuses, sex organs, and tongues, appearing to have been meticulously drained of blood. Curiously, no tracks or footprints are found in the vicinity of the carcasses, and the usual scavengers steer clear of these remains.

Between April and October of 1975, Colorado alone reported nearly 200 cases of cattle mutilation.

Theories and Investigations

Various theories attempt to explain these mutilations, ranging from common predators to UFOs. Some locals and law enforcement communities believe that individuals engaged in peculiar, quasi-religious rituals are responsible for the mutilations.

Reports from affected ranching communities suggest that the occurrences often coincide with sightings of mysterious, unmarked helicopters. Certain ranchers suspect government involvement, speculating reasons such as the testing of biological weaponry.

Despite these theories, the FBI’s investigation into a series of cases in New Mexico concluded that common predators were responsible for the mutilations. However, this conclusion faced strong disagreement from the local community.

Impact on Ranchers

The cattle mutilation phenomenon has significantly affected ranchers. The 1970s, when reports surged, presented a challenging period for ranchers due to high inflation rates, increased feed prices, and federal environmental conservation efforts limiting grazing on public land. The mysterious cattle mutilations compounded the distress, resulting in millions of dollars in livestock losses.


Despite numerous investigations and theories, the enigma of cattle mutilations remains unsolved. The phenomenon continues to baffle ranchers, law enforcement, and researchers, leaving a trail of unanswered questions.

While the cattle mutilation phenomenon is not exclusive to Wyoming, it is part of a larger, nationwide mystery that continues to bewilder and concern those engaged in livestock farming. As investigations persist and new theories emerge, one can only hope for a resolution to this eerie and unexplained occurrence.


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