Immerse yourself in historic Arizona.
From its beginning as a 1722 Jesuit mission to its years as a presidential retreat, Rancho de la Osa has shaped borderland history for three centuries. Your stay includes lodging in historic adobe rooms, gourmet southwestern cuisine, and daily adventures from horseback riding through high desert grasslands to exploring Native American ruins. U.S. Presidents, Hollywood legends, and countless others have all found something real in this remote corner of Arizona.
Etch your own chapter into Rancho de la Osa's storied history.
The sacred Baboquivari Peak dominates the horizon, rising above adobe buildings that have stood for three centuries at this remote desert crossroads. Beyond the hacienda walls, golden eagles soar overhead as pronghorn and mule deer roam the surrounding wildlife refuge, where seasonal marshlands and mesquite groves create a haven for over 300 bird species. Your mornings might start with a ride through hidden canyons, your afternoons by the pool or exploring ruins, but every moment reminds you that you're experiencing something singular in the American Southwest.
Three centuries. One ranch.
Each room tells its own story through hand-picked furnishings and historic architecture. Sleep in Eleanor Roosevelt's Christmas retreat or Zane Grey's writing refuge, all updated with modern comforts while maintaining their original character. The main hacienda welcomes you in with its thick adobe walls that keep the desert heat at bay, while Arizona's oldest continually used building—the 1722 Cantina—invites evening gatherings.
Generations of ranch chefs have perfected these Southwestern recipes, each adding their own signature to traditional borderland flavors. Mornings begin with fresh coffee and hearty breakfasts before the day's adventures. Lunches and dinners bring everyone together in the historic dining room or on the patio, where family-style serving makes every meal a social occasion. As day turns to evening, the 300-year-old Cantina welcomes you for drinks and conversation beneath its original mesquite beams.
From your base at the hacienda, adventures unfold across the landscape. Saddle up and explore the desert on horseback, track rare birds through the wildlife refuge, discover Native American ruins by UTV, or test your aim at the clay shooting range. Hiking trails lead to sacred peaks and hidden canyons, while the onsite outdoor pool offers respite from desert exploration.
Located along the U.S.-Mexico border in Sasabe, Arizona, near the Buenos Aires Wildlife Refuge.
Meetings + Events
Hosting a meeting or event? Rancho de la Osa is perfect for small gatherings, from family reunions to company retreats. Accommodating groups of up to 40 people, its historic setting offers a remote and tranquil environment—paired with private group meeting space that provides an ideal atmosphere to focus, connect, and create a unique, memorable experience. Plus, a variety of packages and optional inclusions make it easy to customize your event to suit your group's needs. To learn more, click here.