RIVERTON, Wyo. (AP) — A historian says a sinkhole that unexpectedly appeared may be the previously hidden entrance to a Wyoming mine's largest historic gold shaft.

HARRISON, Neb. (AP) — The National Weather Service has confirmed that an EF-2 tornado churned into western Nebraska from Wyoming, killing horses, injuring two people and damaging buildings before dissipating.

LARAMIE, Wyo. (AP) — A mountain lion spotted near a day care caused a stir in a Wyoming college town.

CODY, Wyo. (AP) — A new group is starting a gunfight re-enactment show in northwestern Wyoming after it was able to obtain affordable insurance coverage.

JACKSON, Wyo. (AP) — A bus driver has proved that a runaway truck system on a highway in western Wyoming works as intended.

DOUGLAS, Wyo. (AP) — A nurse in Wyoming has been placed on administrative leave after hospital administrators determined he had been taking a narcotic painkiller intended for patients.