🌊 A marvel of engineering, the #CrystalSprings Dam was built in 1888 to create the reservoir just north of Filoli. It was built by the Spring Valley Water Company, which had a monopoly on San Francisco’s water supply at the time. Though Filoli builder William Bourn had nothing to do with the project, he would later become president of the company in 1908 and located his dream retirement home within view of the glistening reservoir waters.⁠ ⁠ 👀 Read more about the Crystal Springs Dam on our blog by clicking the link in bio or visiting filoli.org/explore/blog/⁠ ⁠ 📸: Courtesy of the San Francisco Public Utilities Commission.