Patagonia Mountains the Sonoran town of San Lazaro. The old mining camps and ghost towns of Mowry, Washington Camp, Harshaw, and Duquesne are located in the Patagonia Mountains. Nogales, Arizona, and Nogales, Sonora, are in the valley to the southwest of the mountain range. The San Rafael Valley and Canelo Hills are to the east of the Patagonia Mountains. The connected Santa Rita, Patagonia, and Sierra San Antonio ranges are part of the Madrean Sky Islands ecoregion, the sky island mountain ranges region on the north of the Sierra Madre Occidental, the major cordillera and mountain ecoregion of central-western and northwestern Mexico.
Socorro County, New Mexico the top of South Baldy peak in the Magdalena Mountains. The southern portion of the Rocky Mountains extend into New Mexico and Socorro County. There are several mountain ranges that spread throughout the county. The Forest Service manages portions of four mountain ranges: the Bear, Datil, Magdalena, and San Mateo Mountains. Most of the land that comprises these mountains are within the Cibola National Forest. These ranges, as well as Ladron Peak located in Socorro County, are classified as sky islands. As of the 2000 census, there were 18,078 people, 6,675 households, and 4,492 families residing in the county. The