Images from Glyn Vincent's book The Unknown Night: The Genius and Madness of R.A. Blakelock, An American Painter

Indian Encampment Along the Snake River, 1871
(Courtesy of The Anschutz Collection)

Indian Encampment, circa 1885.
Similar in style to an encampment in the Metropolitan Museum of Art.
(Courtesy of Salander-O'Reilly Galleries, New York)

Sunset, 1916
(National Academy of Design, New York)