Portion of Cassini map (18th cent.) showing an area of about 15 km North-South x 26 km East-West, on the east of Tonnerre in the present Yonne departement, east of Burgundy.<br><p>The Armançon river flows from the middle of the bottom side of the picture, to the upper left corner. Settlements along the river, going downstream: see description below.
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Tonnerre is about half-way up near the left side of the picture.
Cassini family (18th century)
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