Hawaii is the newest of the 50 U.S. states, and is the only state made up entirely of islands. It is located on an archipelago in the central Pacific Ocean, southwest of the continental United States, southeast of Japan, and northeast of Australia. The state was admitted to the Union on August 21, 1959. Its capital is Honolulu on the island of Oʻahu. The most recent census estimate puts the state’s population at 1,283,388.

The state encompasses nearly the entire volcanic Hawaiian Island chain, which comprises hundreds of islands spread over 1,500 miles (2,400 km). At the southeastern end of the archipelago, the eight “main islands” are (from the northwest to southeast) Niʻihau, Kauaʻi, Oʻahu, Molokaʻi, Lānaʻi, Kahoʻolawe, Maui, and Hawaiʻi. The last is by far the largest, and is often called the “Big Island” or “Big Isle” to avoid confusion with the state as a whole. This archipelago is physiographically and ethnologically part of the Polynesian subregion of Oceania.

Hawaii has produced one U.S. President, the incumbent, Barack Obama.

Hawaii Volcanoes National Park, established in 1916, is a United States National Park located in the U.S. State of Hawaiʻi on the island of Hawaiʻi. It displays the results of hundreds of thousands of years of volcanism and a distinct , migration, and evolution—processes that thrust a bare land from the sea and clothed it with complex and unique ecosystemsAncient Hawaiian culture. Kīlauea, one of the world’s most active volcanoes, and Mauna Loa, the most massive, offer scientists insights on the birth of the Hawaiian Islands and visitors’ views of dramatic volcanic landscapes. In recognition of its outstanding natural values, Hawaiʻi Volcanoes National Park has been designated as an International Biosphere Reserve in 1980 and a World Heritage Site in 1987.

The park includes 1,348 square kilometres (520 sq mi) of land. Over half of the park is designated wilderness and provides unusual hiking and camping opportunities. The park encompasses diverse environments that range from sea level to the summit of the earth’s most massive volcano, Mauna Loa at 13,677 feet (4,169 m). Climates range from lush tropical rain forests, to the arid and barren Kaʻū Desert. Active eruptive sites include the main caldera of Kīlauea and a more active but remote vent called Puʻu ʻŌʻō. The main entrance to the park is from the Hawaii Belt Road. The Chain of Craters Road, as the name implies, leads past several craters from historic eruptions to the coast. It used to continue to another entrance to the park near the town of Kalapana, but that portion is now covered by a lava flow.