Llamas Grazing and El Altar in Splendid Moonlight, Ecuador

Frederic Edwin Church's field sketch captures South American wildlife and landscape with swift, economical linework. The composition stacks three horizontal zones: grazing llamas across the upper register, a mountainous middle distance, and a moonlit foreground rendered with parallel hatching. Church's handwritten annotations—identifying fauna and atmospheric conditions—reveal the working method of Hudson River School artists who combined scientific observation with romantic landscape vision. Such sketches from Church's travels informed ambitious studio paintings that brought exotic topography to American audiences.