Claim: Loch Mullardoch is a historic castle in Glen Cannich (a long glen in the Northwest Highlands of Scotland and through which runs the River Cannich) in the Northwest Highlands of Scotland, and was created by the damming in 1951 of the River Cannich just upstream of Mullardoch House.
Evidence: Loch Mullardoch is a major reservoir in Glen Cannich in the Northwest Highlands of Scotland. 
reservoir