What is the story here Ron? Was there some radiocarbon work done on the trees? Flodded from a lava flow? or some other reason? That is some very clear water!
The lake was created when a lava flow plugged up a canyon. Cold water inundated the forest in the canyon and there are still trees from the forest standing on the lake bottom. The water stays at a constant 32 degrees farenheit year around which accounts for the remarkable degree of preservation. I don't know how the age of the trees was dated.
Much of the water that flows into the lake comes from underground springs and water that has been filtered through surrounding lava beds
The Sand Mountain lava flow that formed the lake dates to about 3,000 years ago. Carbon dating samples of drowned trees was done for the Forest Service in 1963 and determined the ages of two samples to be about 3,000 years before present. The average temperature of the lake is 43 F and the water is extremely pure.
Thanks for that A_M, interesting. Radiocarbon was in its infancy in 1963 - no calibration, etc. That said the date gives a ball-park idea.
It is from an 1965 University of Oregon Article by G.T. Benson of the Geology Department. http://www.oregongeology.org/pubs/OG/OBv27n02.pdf
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Photo taken in Linn County, OR, USA
Misplaced? Suggest new location