Montrachet River
A major route of trade and commerce, the Montrachet River originates at the confluence of the Palatine River from the mountains north of Midheim, and the Griffe River out of Deep Woods before flowing down through the wine country of Borderlay, gathering several tributaries and meeting the Alp River at the southern end of Borderlay.
South of Borderlay the river is often called Bas Montrachet (Lower Montrachet), and the stretch before the confluence with the Alp is sometimes called Haut Montrachet (Upper Montrachet) to differentiate them, particularly for the purposes of wine production (the wines of Borderlay and other areas on the Haut Montrachet being generally superior to those produced on the Bas length of the river).
The Bas Montrachet forms the border between County Chagny, the Viscounty of Vole on the south and eastern side, and County Bowcourt (the Marquessa's direct holdings) on the north and western side.
South of the Viscounty of Nevers the Montrachet joins the Baratary River and the two empty into the Ffenargh swamp. The events of the Drow Invasion - in particular the freezing of the Baratary River to form the Ice Road north - the course of the lower Montrachet has changed, meeting the Baratary further south than before. This change in course alters the borders of the surrounding holdings; exact ownership remains in dispute.
Like the Baratary, the navigable length of the river used to end at the Ffenargh, but in early 790's dredging work undertaken by the Theocracy opened a route to the sea, greatly increasing trade on the river. The route to the sea remains open, but the Drow invasion and related events in the Ffenargh have made transit more dangerous.