Mirror Lake

Mirror Lake was a name shared by two lakes in Faerûn:
 * Mirror Lake (Cold Lands), an icemelt lake northwest of Vaasa, fed by the River Pelauvir and the source of the Beaumaris River; and
 * Mirror Lake (Moonshae Isles), a magical lake in the hidden elven kingdom of Synnoria on the isle of Gwynneth, which was said to conceal a time gate.