Sierra Nevada Brewing Company is an American craft brewery founded in 1980 by Ken Grossman and Paul Camusi in Chico, California. It is known for its commitment to quality and sustainability, using natural ingredients and innovative brewing techniques. The brewery's flagship beer, Sierra Nevada Pale Ale, has become a staple in the craft beer community. Over the years, Sierra Nevada has expanded its operations and product line, offering a variety of seasonal and specialty beers. The company also emphasizes environmental responsibility, implementing practices such as energy efficiency and waste reduction in its brewing process.