West at a distance of 20 miles.
Castel San Pietro lies exactly North West of Imola, at a distance of 7 miles.
Faenza, as regards Imola lies exactly half way between the East and South East at a distance of 10 miles; and Forli lies in the same direction from Imola at a distance of 20 miles; and Forlimpopolo lies in the same direction from Forli at a distance of 25 miles.
Bertinoro is seen from Imola two points from the East towards the
South East at a distance of 27 miles.
[Footnote: Leonardo inserted this passage on the margin of the circular plan, in water colour, of Imola—see Pl. CXI No. 1.—In the original the fields surrounding the town are light green; the moat, which surrounds the fortifications and the windings of the river Santerno, are light blue.