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11/21/2024 07:27:50 pm

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Mystery Hole: Why Oregon's 'Lost Lake' Disappears Every Year

Every year, the Lost Lake of Oregon disappears where water spirals down the basin similar as to how bath water goes down in a drain.

Apparently, it is still unknown to scientists where the water actually goes when temperatures become warmer although many think that the existence of an underground aquifer could be the potential container for the water.

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Water leaves the lake evey year that travels inside an ancient lava tube and normally, the water gets replenished from other water formations such as creek systems. However, these sources get dried out when the temperatures begin to get warmer as the water inside the natural tunnel is not yet replaced, resulting in the lake's dramatic water level drop.

When the lake is draining, this massive amount of water flows into the six feet wide lava tube that empties out the lake. Most of the year, water levels at the lake remains calm and relatively steady as new water reserves balance out the lost water into the drain and from evaporation.

This lava tube was created ages ago when magma movement existed underground that occasionally rises to the surface as lava. When the geological formation in the region began cooling down, the tunnel transformed into a pathway system that sends water to other unknown parts. 

Rocks from volcanic formation are often considered as porous that allows the water to seep and settle underground when it leaves the lake bed. An aquifer found in the region could be the water source of springs found on Cascade Mountains that supplies communities as well. 

Apparently, some local residents have already attempted to block the hole in the lake to prevent the water from draining but were unsuccessful. According to Jude McHugh from the Willamette National Forest, if this blockage succeeds, this will cause the lake to overflow that can damage public streets near the waterway.

McHugh also adds that if anyone would become successful in plugging that hole, this will result in lake flooding. Another lake near Lost Lake called Fish Lake also gets drained when temperatures rise however, the water in Fish Lake seeps through volcanic rock which are porous, getting absorbed in the process as opposed to traveling down a lava tube.

To date, Oregon has 19 bodies of water that are named Lost Lake.

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