Cara Dufour Denison in The Thaw Collection: Master Drawings and Oil Sketches, Acquisitions Since 1994. Exh. cat., Pierpont Morgan Library. New York, 2002, pp. 160–61, no. 72, ill. (color).
Valentina Branchini. "Simon Denis (1755–1813) in Italia: Dipinti e Disegni di Paesaggio." PhD diss., Università di Bologna, 2002–3, pp. 88, 90, 101, no. 10, ill., calls it "Nei pressi delle Cascatelle"; compares it to other treatments of the subject executed between 1790 and 1795.
Geneviève Lacambre. "Two Series of Studies in Oil on Paper Numbered by Pierre-Henri de Valenciennes and Simon Denis." Studying Nature: Oil Sketches from the Thaw Collection. Ed. Jennifer Tonkovich. New York, 2011, pp. 74, 81, no. 30, calls it "Around the Waterfalls, with a River Embankment and Cascade" and deduces that the number 30 on the verso situates it within the range of works similarly inscribed 1 through 30, whose primary motifs are waterfalls and rocks.
Esther Bell. "Catalogue Raisonné of the Thaw Collection." Studying Nature: Oil Sketches from the Thaw Collection. Ed. Jennifer Tonkovich. New York, 2011, p. 115, no. 42, ill. (color), calls it "Aniene River at Tivoli".