Murphy Windmill

In the 1870s and 1880s, Golden Gate Park was planted on sand dunes and required substantial irrigation. In 1902, the Park Commission authorized the construction of two windmills to pump groundwater for park irrigation rather than purchasing water at exorbitant costs from the Spring Valley Water Company. The Dutch Mill was completed one year later and pumped 30,000 gallons per hour. Five years later, the Murphy Mill pumped an additional 40,000 gallons per hour to the park.
Electric water pumps replaced the need for windmills in 1913, and the two mills fell into disrepair. By the 1950s, the mills were in a state of ruin.
The Dutch Mill was restored in 1981, Since Murphy Mill reopened in 2012 the Dutch community in the Bay Area celebrates their national Kings Day every year end of April at Murphy Mill. They celebrate Dutch culture and traditions, including old Dutch kids games, flea market, Dutch food, beer, music & dancing. en.wikipedia.org/wiki/Golden_Gate_Park_windmills