Albert Bierstadt (1830 – 1902) was a German-American, Hudson River School painter, best known for his landscapes of the American West. He painted large, romantic canvases of the Rocky Mountains, the Yosemite Valley, and the Native American tribes of the West.
Bierstadt always loved mountains... The artist's rugged, romanticized landscapes of the West, painted on a grand scale with an abundance of detail and dramatic lighting... He exhibited at the Boston Athenaeum from 1859 to 1864, at the Brooklyn Art Association from 1861 to 1879, and at the Boston Art Club from 1873 to 1880. A member of the National Academy of Design from 1860 to 1902, he kept a studio in the 10th Street Studio Building, New York City from 1861 to 1879. He was a member of the Century Association from 1862 to 1902. 
Sierra Nevada, circa 1871.