Monday 22 August 2016

Lost Lake, Oregon
Lost Lake lava tube Every winter, a lake appears in Hood County, Oregon, but as the season changes, water drains through a 6-foot wide hole, transforming Lost Lake into a dry meadow. There’s a geological explanation for the bizarre annual occurrence though: The water that drains from the lake like a bathtub flows into a lava tube, a tunnel-like structure formed by flowing lava. Lost Lake is likely constantly draining, but it becomes more evident in drier months when the rate of draining exceeds the the amount of snow and rain. It’s unclear exactly where the water goes when it disappears down the lave tube, but scientist say it’s possible that it seeps into porous volcanic rock and feeds springs in the Cascades.

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