Why is the Hagerman Horse Idaho’s state fossil? The Hagerman Horse is Idaho’s state fossil. This zebra like creature lived in Idaho about three and half million years ago. Learn more about the ...

Gidley of the Smithsonian Institution. During the summer of 1929, the two scientists excavated what became known as the Hagerman Horse Quarry. Three tons of specimens were sent back to the ...

Q: Was the Hagerman horse originally in the Smithsonian? A: "No, the Hagerman horse replica in the Hagerman Museum — the life-size skeleton — did not come to Hagerman from the Smithsonian ...