Pyramid Lake Indian Reservation - Environmental Factors

Environmental Factors

The Lahontan Cutthroat trout fishery at Pyramid Lake draws many anglers from the Reno area and beyond. Sale of fishing licenses and boating permits is a large source of revenue for the tribe. Prior to the construction of Derby Dam and the diversion of water from the Truckee River for irrigation, the lake supported a commercial fishery which was an even larger revenue source for the tribe.

Historically water levels have been declining in Pyramid Lake; in addition, water quality has been impacted by upstream discharges including point and non-point sources. A number of studies have been conducted on Pyramid Lake including application of the DSSAM hydrological river model to examine nitrogen, reactive phosphorus, dissolved oxygen and other water quality parameters.

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