Sabine Rewald. Caspar David Friedrich: Moonwatchers. Exh. cat., The Metropolitan Museum of Art. New York, 2001, pp. 46–47, no. 11, ill. (color), dates it about 1830; states that here the artist "approaches the spontaneity and naturalism of his [...] Dresden painter friend, Johan Christian Dahl"; locates the view near the river Elbe.
Esther Bell. "Catalogue Raisonné of the Thaw Collection." Studying Nature: Oil Sketches from the Thaw Collection. Ed. Jennifer Tonkovich. New York, 2011, p. 107, no. 18, ill. (color), calls it "Landscape at Sunset" and dates it about 1830.