Fish biologists say as many as 100,000 trout, bass and catfish have died the past month in the Sparks Marina along Interstate 80.
Nevada Department of Wildlife spokesman Chris Healy says low oxygen levels killed about 3,000 fish in one corner of the 77-acre lake in mid-December but they thought the event was localized and of limited impact.
Since then, they've been unable to detect any live fish.
Biologists say a cold-snap could have stirred up oxygen-poor waters but they don't understand yet what caused the massive die-off.
The "well above-average" rain of the past three months in California has not brought any improvement to drought conditions in the state.
(AP) - Unemployment rates for Nevada's main metropolitan areas are up slightly, even though the overall state rate fell to a seven-year low.
(AP) - Nevada again ranked poorly in a national child welfare report, coming in dead last when it comes to education.
A new firefighting aircraft stationed in South Lake Tahoe gives crews another tool to battle wildfires in the region.
(AP) - More Nevadans than expected have enrolled in Medicaid after Gov. Brian Sandoval opted to expand eligibility, meaning the state will pay more than originally projected once the federal government starts scaling back its support.