Stone Canyon Ranch, an amazing equestrian estate set on over 10,000 acres of premium vineyard, agricultural, and grazing land in California’s San Benito River Valley, has been listed for sale via an affiliate of Christie’s International Real Estate for $32 million.

The impressive property was acquired by billionaire financier George R. Roberts, one of the three original partners of Kohlberg Kravis Roberts & Co., in the mid-1990s for his late wife Leanne, an award-winning equestrienne and horse breeder. He proceeded to bring it up to world-class standards in landscaping, construction, and facilities for keeping horses.

Renowned San Francisco-based architect Ugo Sap designed two compounds on the estate comprising a main residence, guest quarters, five separate horse barns, two riding arenas, two training arenas, and a hay barn. Sap situated the estate to provide incredible views, maximum privacy and harmony with the natural surroundings.

Sited atop a commanding ridge line with panoramic views of the property and surrounding valley, the main residence features 7,900 square feet of living space with a floor plan dominated by a large foyer at the center. Key features are the wine cellar, library and a large master-bedroom suite with two bathrooms and a study.

The ranch’s slate roof tiles are from France, the limestone flooring is from Italy, and the trellises are made of Alaskan cedar. The house’s exterior includes stone walls and solid mahogany doors and window casements. The interior features limestone floors and stone fireplaces. Adjacent guest quarters occupy more than 4,500 square feet and the upper residential compound features a large 20-by-60-foot swimming pool, tennis court, pool house, garage, and landscaped yards with modern sculptures. Elsewhere on the impressive property are three single family residences that can serve as homes for a ranch caretaker and staff. Go to ChristiesRealEstate.com to see more.