Successful deep drilling at Lake El’gygytgyn (67°30’N, 172°05’E), in the center of western Beringia, recovered 315 m of sediment, representing the longest time-continuous sediment record of past climate change in the terrestrial Arctic. The core was taken using the DOSECC GLAD800 (Global Lake Drilling 800 m) hydraulic/rotary system engineered for extreme weather, using over-thickened lake ice as a drilling platform. El’gygytgyn is a Yup’ik name that has been variously translated as “the white lake” or “the lake that never thaws.” Today, the lake maintains an ice cover nine to 10 months per year.

Brigham-Grette, J., M. Melles, P. Minyuk, and C. Koeberl. 2011. Millennial-scale Arctic climate change of the last 3.6 million years: Scientific drilling at Lake El’gygytgyn, Northeast Russia. Oceanography 24(3):80–81, https://doi.org/10.5670/oceanog.2011.58.

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