About Our Properties

Come to South Mill Ranch and experience first class improvements, unmatched serenity,
and stunning beauty amid this very private and unique high desert setting.


The Morning Star Collection at South Mill Ranch – Phase I

Escape the big cities and enjoy the peace, serenity, and security of living on a 5000 acre gated ranch in Tubac, Arizona.

South Mill Ranch is a safe haven for your family in these uncertain times. Phase I of South Mill Ranch is an enclave of private 36-acre homesites set against a dramatic backdrop of mountains, rock formations, seasonal creeks and luxuriant rolling hills.

This is social distancing to the extreme in a residential enclave where you know your neighbors are near but your privacy is assured.

With sensational views in all directions, residents also enjoy the most comfortable annual climate in Arizona at 4,000 feet or more in elevation.

The Morning Star Collection, consisting of 36 acre homesteads, is Phase I of South Mill Ranch and is nearing completion with the sale of 50, 36-acre home sites to date. A limited number of 36 acre developer parcels are still available.

36 acre Estate Homesites Starting at $150,000.00.


Estates at South Mill Ranch – Phase II

Six properties—South Mill, Sombra del Sol, Double MM, Winery Springs Ranch, Jasper Springs Ranch and Alamo Canyon Ranch—make up phase II of South Mill Ranch. 

With 2,304 deeded acres that occupy its own valley protected by the San Cayetano Mountains on the west, with San Cayetano Peak in the center of the range reaching 6,004 feet, these ranches offer the ultimate in privacy, safety, and space.

These six ranch estates make up Phase II of South Mill Ranch, which offers unique, unmatched legacy ranch estates and land parcels ranging from 149 to 1,800 acres.



South Mill Ranch residents have access to high speed internet to connect you and your family to the world. Enjoy underground utilities, first class medical facilities in nearby Tucson, and use of a ranch heliport for medical emergencies.

Moreover, the convenience of Tubac’s shopping, entertainment, and vital services are a stone’s throw from the ranch. In a changing world this is a lifestyle for you and your family you will embrace now and forever.



South Mill Ranch and its surrounds provide miles of hiking, horseback riding and mountain biking trails. The ranch is gated and the utilities are underground. There is private paved road access to or very close to the properties and there are sensible deed restrictions which protect property values.

The 10,000-acre Sonoita Creek State Natural Area lies adjacent to the south of the ranch and natural geography, including the Grosvenor Hills, borders to the east. The Santa Rita Mountains are to the north, rising over 9,800 feet.

Another of the many benefits of being part of South Mill is the abundant wildlife. Animals found on the ranch and nearby preserves include black bears, bobcats, foxes, and coyotes with whitetail deer and javelina as the most prevalent for big game hunting. Bird and waterfowl species are too numerous to name with the nearby Sonoita Creek Riparian Area and Patagonia Lake State Park. This creates incredible, unlimited bird watching opportunities.