The Sierra Nevada Mountains are a major mountain range located in eastern California and western Nevada. Stretching approximately 400 miles, they are known for their stunning landscapes, including towering peaks, deep valleys, and beautiful lakes. The range is home to several national parks, including Yosemite National Park and Sequoia National Park, which protect its diverse ecosystems and unique geological features. The Sierra Nevada is also famous for its rich biodiversity, hosting various plant and animal species. The mountains play a crucial role in California's water supply, as they capture snow during the winter that melts and feeds rivers and reservoirs in the warmer months.