The SIERRA is a rugged mountain chain located in the western United States. It stretches 400 miles from central California to northern Nevada and is home to some of the highest peaks in the contiguous United States, including Mount Whitney, the highest peak in the lower 48 states. The SIERRA Nevada is known for its dramatic landscapes, including deep canyons, alpine lakes, and lush meadows. It is also home to a variety of wildlife, including black bears, mountain lions, and bighorn sheep.