Clouds at Sunset, Hudson, New York

This oil sketch by Frederic Edwin Church captures the atmospheric effects of sunset over the Hudson River valley. Church, a leading figure of the Hudson River School, was renowned for his meticulous studies of light and meteorological phenomena. Working rapidly with pencil and oil, he annotated cloud formations and sky conditions with numbered notations—a practice central to his method of translating natural observation into monumental finished paintings. Such studies were foundational to his larger compositions, allowing him to capture the fugitive qualities of light and weather that defined the American landscape tradition of the nineteenth century.