[2] Cass Cave has the highest subterranean waterfall in West Virginia and Virginia, Lacy Suicide Falls, with a height of 139 ft (42 m).

The waterfall was misnamed, as while a suicide did occur in the cave, it was at a small drop near the entrance.

[3] The June 1964 Issue of National Geographic featured a two-page fold-out color photograph by Huntley Ingalls of a caver climbing a wire ladder adjacent to the waterfall.

[7] In 1977, a climber was trapped in the waterfall and died of hypothermia due to being drenched by falling water.

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