Laguna Honda is a reservoir

Reservoir

A reservoir , artificial lake or dam is used to store water.Reservoirs may be created in river valleys by the construction of a dam or may be built by excavation in the ground or by conventional construction techniques such as brickwork or cast concrete.The term reservoir may also be used to...

 on the southwest shoulder of Mount Sutro

Mount Sutro

Mount Sutro is a hill in San Francisco, California. Most of Mount Sutro remains private property owned by the University of California, San Francisco , but a parcel, including the summit, has been set aside as the Mount Sutro Open Space Reserve and is open to the public. It is one of San...

 in San Francisco, California

California

California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...

, U.S.A.

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

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History

In 1865, the Spring Valley Water Works built a 13 miles (20.9 km) long redwood pipeline to transport drinking water from Pilarcitos Canyon to this reservoir. The 1906 San Francisco earthquake

1906 San Francisco earthquake

The San Francisco earthquake of 1906 was a major earthquake that struck San Francisco, California, and the coast of Northern California at 5:12 a.m. on Wednesday, April 18, 1906. The most widely accepted estimate for the magnitude of the earthquake is a moment magnitude of 7.9; however, other...

 destroyed the pipeline. The lake and the surrounding land are now managed by the San Francisco Public Utilities Commission

San Francisco Public Utilities Commission

The San Francisco Public Utilities Commission is a public agency of the City and County of San Francisco that provides water, wastewater, and power services to the City and an additional 1.6 million customers within three San Francisco Bay Area counties.The SFPUC manages a complex water supply...

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