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.
Otay Mountain Otay Mountain Otay Mountain is a mountain located in San Diego County, California. It is the highest summit of the San Ysidro Mountains. It contains both the Otay Lakes and the Otay Mountain Wilderness Area. The physical border separating Mexico and the United States (which can be found near Otay Mountain) has received criticism for the harm it allegedly perpetuated to the environment, both in its construction and in its very nature. The name "Otay" comes from the Kumeyaay word "otie", which means "brushy". On March 16, 1991, a Hawker Siddeley HS-125 airplane carrying seven members of singer Reba McEntire's