Oil on canvas; 68 1/2 x 87 in. (174.0 x 221.0 cm). Pennsylvania Academy of Fine Arts, Philadelphia, PA. (An oil study is owned by the New-York Historical Society, New York, NY; there is also an excellent copy, in a smaller size by Asher B. Durand, c. 1831 - 35, at The Metropolitan Museum of Art, New York, NY.)
This is considered to be Vanderlyn’s masterpiece and one of the most advanced paintings of its day.