Old Borges Ranch, Historic ranch district in Walnut Creek, US.

Old Borges Ranch is a 1,035-acre historic district in the Mount Diablo foothills, within Walnut Creek Open Space. Its five-room redwood farmhouse, built in 1901, is now a historic house museum with period furnishings and a cast-iron stove. The grounds also hold original barns, a blacksmith shop, a windmill, antique tractors, and a ranger station.

Portuguese immigrant Francisco "Frank" Borges bought 700 acres in 1899 for a cattle ranch and family home, and the redwood farmhouse was built in 1901. Five generations of the Borges family lived and worked there until the ranch fell into disrepair. In 1974 Walnut Creek voters approved a $6.75 million bond to preserve open space, the city bought the ranch in 1976, and after restoration it joined the National Register of Historic Places in 1981.

Francisco "Frank" Borges, a Portuguese immigrant, bought the land in 1899 and built the redwood farmhouse in 1901; five generations of his family lived and worked here. The restored house museum keeps period furnishings and artifacts, including a cast-iron stove, and displays on the area in the early 1900s.

The property is accessible via Castle Rock Road with parking at the gated entrance, followed by a short walk to the main structures. Early morning visits on weekdays offer the best experience, with fewer visitors and clearer views across the hillsides.

The ranch's farmhouse became a visitor center for the Walnut Creek Open Space after Ron White, formerly with the National Park Service, was hired as the open space's first ranger and moved his family onto the property in 1978. The city had bought the ranch two years earlier, in 1976, after voters approved a $6.75 million bond measure in 1974.