Cascade Lake, Californian Sierra Nevada, California

Lake Cascade (formerly “Cascade Reservoir”,also formerly known as Payette Lake “The Mile High Playground”) is a reservoir in the western United States, on the North Fork of the Payette River in Valley County, Idaho. Located in the Boise National Forest, it has a surface area of 47 square miles (122 km2), and is the fourth largest lake or reservoir in the state. The closest cities are Cascade, Donnelly, and McCall, all in the Long Valley of Valley County.

Following a delay due to World War II, the earthen dam was built by the Bureau of Reclamation, and completed in 1948.The term “Lake Cascade” came into common use in the 1990s, with the federal name change made in 1999.

The Sierra Nevada is a mountain range in the western United States, between the Central Valley of California and the Basin and Range Province. The vast majority of the range lies in the state of California, although the Carson Range spur lies primarily in Nevada.

The Sierra runs 400 miles (640 km) north-to-south, and is approximately 70 miles (110 km) across east-to-west. Notable Sierra features include Lake Tahoe, the largest alpine lake in North America; Mount Whitney at 14,505 ft (4,421 m),the highest point in the contiguous United States; and Yosemite Valley sculpted by glaciers out of 100-million-year-old granite. The Sierra is home to three national parks, 20 wilderness areas, and two national monuments. These areas include Yosemite, Sequoia, and Kings Canyon National Parks; and Devils Postpile National Monument.

The character of the range is shaped by its geology and ecology. More than 100 million years ago during the Nevadan orogeny, granite formed deep underground. The range started to uplift 4 Ma (million years) ago, and erosion by glaciers exposed the granite and formed the light-colored mountains and cliffs that make up the range. The uplift caused a wide range of elevations and climates in the Sierra Nevada, which are reflected by the presence of five life zones. Uplift continues due to faulting caused by tectonic forces, creating spectacular fault block escarpments along the eastern edge of the southern Sierra.

The Sierra Nevada has a significant history. The California Gold Rush occurred in the western foothills from 1848 through 1855. Due to inaccessibility, the range was not fully explored until 1912.

Cascade Lake, Californian Sierra Nevada, California

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