 The west wall of the valley is formed by Higgins Mountain ( elevation) and the east wall is formed by several unnamed peaks (- elevation).The south end and highest point of the trough is Folly Lake ( elevation) which drains south to the Bay of Fundy through the Folly River, therefore its waters do not enter the valley.The Wallace River flows north through the valley to the Northumberland Strait from its source in Dicks Meadows on Higgins Mountain.