Herald Island (Arctic)
| Russian: Остров Геральд | |
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Herald Island map
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| Geography | |
| Area | 11.3 km2 (4.4 sq mi) |
| Highest elevation | 364 m (1,194 ft) |
| Administration | |
| Demographics | |
| Population | 0 |
Herald Island (Russian: Остров Геральд, Ostrov Gerald) is a small, isolated Russian island in the Chukchi Sea, 70 km (43 mi) to the east of Wrangel Island. It rises in sheer cliffs, making it quite inaccessible, either by ship or by plane. The only sliver of accessible shoreline is at its northwestern point, where the cliffs have crumbled into piles of loose rocks and gravel. Its area is 11.3 km2 (4.36 sq mi) and the maximum height above sea level is 364 m (1,194 ft). The island is unglaciated and uninhabited.
Herald Island belongs administratively to the Chukotka Autonomous Okrug of the Russian Federation. Along with Wrangel Island, Herald Island is part of the Wrangel Island Wildlife Preserve, a Russian National Park, since 1976. Cape Dmitrieva on Herald Island, marks the easternmost limits of the nature reserve.
Herald Island is named after survey vessel HMS Herald, from which the island was discovered in 1849.
Herald Island is composed of sedimentary, metamorphic, and igneous rocks. The northeastern tip of this island consists of a 600 m (1,969 ft)-thick sequence of sandstone, phyllite, quartzose sandstone, quartz-chlorite-sericite schist mylonite, and cataclastic quartz syenite. These rocks are of either Proterozoic or Late Paleozoic age. The bulk of this island consists of a Jurassic granite pluton.
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