Miller's Lake is a small lake in Redania, far north of Oxenfurt and around Brunwich village.
Along its shore is Brunwich to the north, the Old Chapel and Upper Mill to the east, and an abandoned site to the west. There's also 2 small islands in the middle of the lake, with one of them having an ancient altar on it. Interestingly, in the waters on the north side one can find ruins of a building. It's unclear how it collapsed though.