sued the Department of the Interior. By the mid-1970s, the lake had lost of depth, and according to Paiute fisheries officials, the lake's life was seriously under threat. According to documentary filmmaker John Pilger, the irrigation scheme for which water was diverted was an economic failure.

;Chronology
* 1860 - The Pyramid Lake War: Paiute natives and Euro-American settlers clashed.
*1903 - Irrigation diversion of the Truckee via the Derby Dam