Boulder vs Anchorage

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In geology, a boulder is a rock fragment with size greater than 256 millimetres (10.1 in) in diameter. Smaller pieces are called cobbles and pebbles. While a boulder may be small enough to move or roll manually, others are extremely massive. In common usage, a boulder is too large for a person to move. Smaller boulders are usually just called rocks (American English) or stones (In British English a rock is larger than a boulder). The word boulder is short for boulder stone, from Middle English bulderston or Swedish bullersten.In places covered by ice sheets during Ice Ages, such as Scandinavia, northern North America, and Siberia, glacial erratics are common. Erratics are boulders picked up by ice sheets during their advance, and deposited when they melt.

They are called "erratic" because they typically are of a different rock type than the bedrock on which they are deposited. One of them is used as the pedestal of the Bronze Horseman in Saint Petersburg, Russia. Some noted rock formations involve giant boulders exposed by erosion, such as the Devil's Marbles in Australia's Northern Territory, the Horeke basalts in New Zealand, where an entire valley contains only boulders, and The Baths on the island of Virgin Gorda in the British Virgin Islands. Boulder-sized clasts are found in some sedimentary rocks, such as coarse conglomerate and boulder clay. The climbing of large boulders is called bouldering.

Source: Wikipedia

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Anchorage (officially called the Municipality of Anchorage; Dena'ina: Dgheyay Kaq'; Russian: Анкоридж) is a unified municipal consolidated city-borough in the U.S. state of Alaska, on the West Coast of the United States. With an estimated 288,000 residents in 2019, it is Alaska's most populous city and contains nearly 40% of the state's population; among the 50 states, only New York has a higher percentage of residents who live in its most populous city. The Anchorage metropolitan area, which includes Anchorage and the neighboring Matanuska-Susitna Borough, had a population of 396,317 in 2019, accounting for more than half the state's population. At 1,706 square miles (4,420 km2) of land area, the city is the fourth-largest by area in the United States and larger than the smallest state, Rhode Island, which has 1,212 square miles (3,140 km2).Anchorage is in Southcentral Alaska, at the terminus of the Cook Inlet, on a peninsula formed by the Knik Arm to the north and the Turnagain Arm to the south.

The city limits span 1,961.1 square miles (5,079.2 km2), encompassing the urban core, a joint military base, several outlying communities and almost all of Chugach State Park.Due to its location, almost equidistant from New York City and Tokyo, Anchorage lies within ​9 1⁄2 hours by air of nearly 90% of the industrialized world. For this reason, Ted Stevens Anchorage International Airport is a common refueling stop for international cargo flights and home to a major FedEx hub, which the company calls a "critical part" of its global network of services.Anchorage has won the All-America City Award four times: in 1956, 1965, 1984–85, and 2002, from the National Civic League. Kiplinger has named it the United States' most tax-friendly city.

Source: Wikipedia