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Pyramid Lake is the largest remnant of ancient Lake Lahontan, which covered much of northwestern Nevada at the end of the last ice age. It was the deepest point of Lake Lahontan, reaching an estimated 890 feet (270 m) due to its low level relative to the surrounding basins. Sutcliffe is on the west shore of Pyramid Lake along State Route 445.
The Lahontan cutthroat trout evolved as a predator species within the waters of Lake Lahontan, feeding on native chub and sucker. This subspecies of cutthroat trout survives today in tributary rivers of the Great Basin , and has been reintroduced to Pyramid Lake and Walker Lake after being extirpated during the 20th century.
In lake habitats such as Walker Lake, Tui chub are heavily preyed upon. They are a key prey item for the Lahontan Cutthroat trout in Walker Lake. Additionally, Tui chub are preyed upon by fish-eating birds. [15] Tui chub diet is varied; young fish eat mostly invertebrates, adding plant material and especially algae as they mature.
Lahontan cutthroat trout, lake form, from Pyramid Lake, Nevada. 1938 remarks by FDR on the taste of Nevada trout.. The Lahontan cutthroat is native to the drainages of the Truckee River, Humboldt River, Carson River, Walker River, Quinn River, and several smaller rivers in the Great Basin of North America. [6]
It empties into the southern end of Pyramid Lake, a remnant of prehistoric Lake Lahontan, in northern Washoe County in the Pyramid Lake Indian Reservation. [13] The Truckee River's endorheic drainage basin is about 3,060 square miles (7,900 km 2), of which about 2,300 square miles (6,000 km 2) are in Nevada. [4]
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Lake Lahontan in the northwest was the largest lake overall and flooded up to 8600 square miles 14,000 years ago. The lake grew in three different phases, with volcanic ash and silt at its bottom. Today, Pyramid Lake is a remnant of Lahontan, where it was once over 900 feet deep. Elsewhere, Clover, Franklin and Waring lakes developed near the ...