Geology
The Little Diomede island is composed of Cretaceous age granite or quartz monzonite. The location of the city is the only area which does not have near-vertical cliffs to the water. Behind the city and around the entire island rocky slopes rise at about 40° up to the relatively flattened top in 1,148–1,191 feet (350–363 m). The island has very scant vegetation.
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