A large lake disappeared into a hole under the ground in Oregons Mount Hood National Forest last April, as a result of an open lava tube, local newspapers reported.
In a video published by Oregon newspaper The Bulletin, water was seen forcefully making its way down the lava hole, draining the lake in its entirety.
Local reports said the phenomenon occurs every year leaving the area dry, after small streams of water gradually refill the lake again.
Jude McHugh, spokeswoman with the Willamette National Forest, told the The Bulletin that the water is believed to reach a porous subsurface, recharging an aquifer that feeds water springs cascades nearby.
