Here's a photo mystery for you. One of the least appreciated photographers of the Old West is Joseph E. Smith, who photographed around Socorro, New Mexico in the 1880s. He took some amazing photographs that deserve an entire, special issue of True West to deal with. First rodeo? I believe Joseph captured an impromptu one out on the San Augustine Plains in 1882.
I recently ran across this photo from an old Life magazine feature about the last cattle drive in Magdalena, New Mexico.