Albert Bierstadt (1830 - 1902) was a German-born American painter best known for his lavish, sweeping landscapes of the American West. To paint the scenes, Bierstadt joined several journeys of the Westward Expansion. Bierstadt was a prolific artist, having completed over 500 paintings during his lifetime. He became part of the Hudson River School in New York, an informal group of like-minded painters who started painting along this scenic river. Their style was based on carefully detailed paintings with romantic, almost glowing lighting, sometimes called luminism. An important interpreter of the western landscape, Bierstadt, along with Thomas Moran, is also grouped with the Rocky Mountain School.