Vigo vs Boulder

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Vigo (, Galician: [ˈbiɣʊ], locally [ˈbiħʊ], Spanish: [ˈbiɣo]) is an industrial city and municipality in the province of Pontevedra, within the autonomous community of Galicia, Spain. Located in the northwest of the Iberian Peninsula, it sits on the southern shore of an inlet of the Atlantic Ocean, the Ria de Vigo, the southernmost of the so-called Rías Baixas. The municipality has an area of 109.

06 km2 (42.11 sq mi) and a population of 295,364 in 2019, making it the most populous municipality in Galicia. Vigo is one of the region's primary economic agents, owing to the French Citroën automotive factory and to the Port of Vigo. Close to the Portugal–Spain border, Vigo is part of the Galicia–North Portugal Euroregion. The European Fisheries Control Agency is headquartered in Vigo.

Source: Wikipedia

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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