Eightmile Lake sits on a highly glaciated and semibarren alpine basin, surrounded by heather and other wildflowers and a coniferous presence primarily larch pines.

Stop logs were first placed in a notch in the concrete portion of the dam up to the spillway crest to allow the lake to fill to an elevation of approximately 4,671 feet.

[7] On August 11, 2017 lightning caused by a cold frontal passage that tracked through the Alpine Lakes Wilderness started a fire about 15 miles southwest of Leavenworth, Washington.

[7] In 2016, Chelan County and the Washington State Department of Ecology had proposed the Icicle Strategy plan to resolve the shortage of water supply that threatened irrigation, fish habitat and passage, and tribal and non-tribal fisheries in the Icicle Creek subbasin region.

[9] The plan also managed to improve streamflow and water availability into the subbasin affected by the subsequent 2017 forest fires.

The Icicle Strategy also restored the dam infrastructure at Eightmile Lake, permitting higher levels of water storage.