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.
Chehalem Mountains Peak, rising to , which is also the highest peak point within the Willamette Valley. The word "Chehalem" is a corruption of the Atfalati Indian word "Chahelim," a name given in 1877 to one of the bands of Atfalati. Chehalem Mountains The Chehalem Mountains are a mountain range located in the Willamette Valley in the U.S. state of Oregon. Forming the southern boundary of the Tualatin Valley, the Chehalems are the highest mountains in the Willamette Valley. Composed of a single land mass that was uplifted by tectonic forces, the mountain range includes several spurs and ridges such as Parrett