In the aftermath of the Great War, Taggerdy's Thunder set up a small camp in a cave at Spruce Knob Lake. They initially believed that reports of nuclear detonations were part of the war games they were assigned to, but quickly recognized mushroom clouds in the distance, prompting their move to set up shop in the cave. They abandoned the encampment and moved on through Appalachia prior to 2078.
When approaching the lake, facing southwest is a dock below a boat rental shop. There is all kinds of debris in the lake, alongside abandoned canoes, boats, fallen tree limbs and buoys. Mirelurks inhabit the water, with a dangerous mirelurk queen potentially at the center of it. Despite their proximity, the lake does not connect to the Spruce Knob Channels.
In the northeast part of the lake, there is small, booby-trapped cave found under some rocks. Inside is the camp used by Elizabeth Taggerdy and her divison after the bombs drapped. There are four sleeping bags inside, as well as two duffle bags.
- 坦格蒂的日記：2077年10月21日 - 湖邊洞穴，在生火處旁邊箱子上。
- 坦格蒂的日記：2077年11月04日 - 同上，on the raised platform.
- 戰爭遊戲 - 同上，on a dresser next to a bottle of boiled water.
- 演習命令 - 同上，on a crate along the rock wall.
There are seemingly two notes at the dock and boat rental area of the lake, but neither of them can be taken.
Spruce Knob Lake appears only in Fallout 76.