• Portland
  • Heishui

Portland (/ˈpɔːrtlənd/, PORT-lənd) is a port city in the Pacific Northwest and the largest city in the U.S. state of Oregon. Situated at the confluence of the Willamette and Columbia rivers, Portland is the county seat of Multnomah County, the most populous county in Oregon. As of 2020, Portland had a population of 652,503, making it the 26th-most populated city in the United States, the sixth-most populous on the West Coast, and the second-most populous in the Pacific Northwest, after Seattle. Approximately 2.5 million people live in the Portland metropolitan statistical area (MSA), making it the 25th most populous in the United States. About half of Oregon's population resides within the Portland metropolitan area.

Named after Portland, Maine, the Oregon settlement began to be populated in the 1840s, near the end of the Oregon Trail. Its water access provided convenient transportation of goods, and the timber industry was a major force in the city's early economy. At the turn of the 20th century, the city had a reputation as one of the most dangerous port cities in the world, a hub for organized crime and racketeering. After the city's economy experienced an industrial boom during World War II, its hard-edged reputation began to dissipate. Beginning in the 1960s, Portland became noted for its growing liberal and progressive political values, earning it a reputation as a bastion of counter-culture.

Heishui is located in the east of the Qinghai-Tibet Plateau, in the middle of Aba Tibetan and Qiang Autonomous Prefecture, connected with Songpan in the north, Hongyuan and Maoxian in the east and west, Lixian and Malkang in the south and southwest, 284km away from the provincial capital Chengdu, and the county seat is 2350 meters above sea level. Heishizang is called "Cuoqu", which means "water of pig iron". Heishui River is a tributary of the upper reaches of Minjiang River. There are 99 small Heishui River, Mauergai River and gully. Heishui territory of the natural scenery Jun Xiu, strange, unique cultural scenery. There are mainly three Olympic Snow Mountains, Custer Landscape, Dagu Glacier, the lowest, largest and youngest glacier in the world at the same latitude, the Milk ditch Colored Forest, known as the 80-mile Gallery, Selgu Tibetan Village and other unique Tibetan dwellings, and Yaxia National Forest Park. Heishui is the place passed by the Red Army on the long March.
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