|Location||Owens Valley, Inyo County, California, United States|
|Basin countries||United States|
|First flooded||March 26, 1872|
|Surface elevation||3,674 feet (1,120 m)|
The lake was formed by the 1872 Lone Pine earthquake on Tuesday, March 26 of that year when 18 mi (29 km) of the Owens Valley dropped approximately 20 feet (6 m) (see graben) and a new spring opened, causing water to fill the lowland.
The lake was named for the Diaz family who established a ranch here when brother Rafael and Eleuterio Diaz emigrated from Chile in the 1860s. They owned and operated a successful cattle ranch until the land was sold to the city of Los Angeles.
- "Diaz Lake". Geographic Names Information System. United States Geological Survey.
- Hall, Jr., C. A. (2007). Introduction to the Geology of Southern California and Its Native Plants. University of California Press. p. 231. ISBN 978-0-520-24932-5.
- "Diaz Lake". Inyo County Parks & Recreation. Retrieved October 1, 2012.