Fig. 4.

Location and setting of the El'gygytgyn impact structure with respect to the logistics of the drilling project (modified from Melles et al. 2011). a) Location of the crater in central Chukotka, NE Russia, about 850 km west of the Bering Strait. The drill rig and all equipment arrived at the lake first by barge from Vladivostok along the indicated route. b) All equipment was transported to the site from the town of Pevek, a gold mining center located on the coast of the East Siberian Sea. Helicopters were used to transport scientists, food, and delicate equipment out to the drill site, whereas the 17 shipping containers with the drilling system were transported by truck. c) Satellite image with lake and crater diameter, the locations of ICDP Sites 5011-1 and 5011-3, and the outline of crater rim (white circle).