Sierra County

Sierra County is ocated in south central New Mexico, along the Rio Grande. The creation of the county was spearheaded by Nicholas Galles who was born in Chicago. He originally t came to the West to become a miner, but also became a lawyer, and legislator. The name Sierra or mountain range, likely came from the Black Range, the focus of intense mining activity at the time, and the first county seat was at Hillsboro, in the range's foothills. The county also contains other mountain ranges as well and may have been named generally for any one of them; the San Andres, Caballo and Fra Cristobal mountains and tip of the San Mateos.

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1884

Sierra County was created  in 1884.  Truth or Consequences is the county seat.

The Place Names of New Mexico, revised Edition by Robert Julyan, University of New Mexico Press, 1998.