In June 1741 he named the magnificent peak on the coast of North America Mount St Elias and explored the Aleutian Islands.
Bering Sea is the northward continuation of the Pacific Ocean, from which it is demarcated by the long chain of the Aleutian Islands.
The Aleutian Islands gradually became known in the pursuit of this trade, through Michael Novidiskov (1745) and his successors, and it was not until Captain James Cook, working from the south, explored the sea and strait in 1778 that the tide of discovery set farther northward.
In the Bering Sea the trough north of Buldir in the Aleutian Islands sinks to 2237 fathoms, and in the Sea of Okhotsk, north-west of the Kuriles, to 1859 fathoms. Similar conditions prevail in the East China Sea and the Andaman Sea.
As the loop of the Kuriles depends from the southern extremity of Kamchatka, so from the east of the same peninsula another loop extends across the northern part of the ocean to Alaska, and helps to demarcate the Bering Sea; this chain is distinctly broken to the east of the Commander Islands, but is practically continuous thereafter under the name of the Aleutian Islands.
