Haute-Marne, contiguous departments in the N.E. of France, in the upper basin of the Marne River; in both cereals, potatoes, and wine are the chief products, the best champagne coming from the N. In the former, capital Chalons-sur-Marne, building stone is quarried; there are metal works and tanneries; in the latter, capital Chaumont, are valuable iron mines and manufactures of cutlery and gloves.