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This page contains one large sketch and one small study in the top right-hand corner of the page. Both appear to depict views within the Val Divedro (Valley of Divedro or Simplon Valley), which lies between Gondo and Crevoladossola near the Swiss/Italian border. Turner travelled through the valley en route to the Simplon Pass in the Swiss Alps. The drawings are too rough to be conclusively identified. However, the main sketch, which possibly spills over onto the opposite sheet of the double-page spread, see folio 85 verso (D14309; Turner Bequest CLXXIV 84a), has been annotated ‘Ddro’, presumably meaning ‘D[ive]dro’.
For a general discussion of Turner’s journey to the Simplon Pass see the introduction to the sketchbook, and also the introduction to the Passage of the Simplon sketchbook (Tate, Turner Bequest CXCIV).