Longchang vs Boulder

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Longchang (Chinese: 隆昌; pinyin: Lóngchāng) is a county-level city of Sichuan Province, China. It is under the administration of Neijiang city. Longchang has a population of nearly 760,000, covering 792 square kilometer. Longchang seizes an important geographic location as the boundary of Sichuan and Chongqing, and plays as distributing center of Sichuan, Yunnan, Guizhou, Chongqing. Since the advantageous location, many important traffic ways pass through Longchang, like the Chengdu–Chongqing Railway, highway, public road, East Chuanyun (Sichuan to Yunnan) road, Longna (Longchang to Luzhou) highway, Longya (Longchang to Ya'an) road, Longhuang (Longchang to Huangtong Guizhou) railway.

To get out of Sichuan Province and further go to the sea, you could choose Longchang as the best way. Thus it is called the east gate of Sichuan. In the long history, Longchang is famous for memorial arches and blue stone. Longchang is a feature to develop tourism. Nowadays, Longchang has finished the plan of bluestone cultural city with eight bluestone image views, including gate, culture, city's dining room, lounge, green park, landscape, business district, landmark. Still this county has some other tourism resources, like groups of memorial arches, Guyu artificial lake, Yunding stockaded village, and Lamp Mountain.

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