| Lower Slate Lake | |
| Location: | Tongass National Forest, Juneau City and Borough, Alaska, United States |
| Coords: | 58.81°N -135.0406°W |
| Basin Countries: | United States |
| Pushpin Map: | Alaska#North America |
| Pushpin Map Alt: | Location of Lower Slate Lake in Alaska, US |
Lower Slate Lake is a lake in the State of Alaska in the Tongass National Forest. It is designated as the disposal site for the tailings from Coeur Alaska's Kensington mine.[1] Lower Slate Lake is away from Berners Bay.