St. Gallen vs Boulder

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St. Gallen or traditionally St Gall, in German sometimes Sankt Gallen (Sankt Gallen ; English: St Gall; French: Saint-Gall; Italian: San Gallo; Romansh: Son Gagl) is a Swiss town and the capital of the canton of St. Gallen. It evolved from the hermitage of Saint Gall, founded in the 7th century. Today, it is a large urban agglomeration (with around 167,000 inhabitants in 2019) and represents the center of eastern Switzerland. Its economy consists mainly of the service sector. The town is home of the University of St. Gallen, one of the best business schools in Europe.

The main tourist attraction is the Abbey of Saint Gall, a UNESCO World Heritage Site. The Abbey's renowned library contains books from the 9th century. The official language of St. Gallen is (the Swiss variety of Standard) German, but the main spoken language is the local variant of the Alemannic Swiss German dialect. The town has good transport links to the rest of the country and to neighbouring Germany and Austria. It also functions as the gate to the Appenzellerland.

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