| Nasukarasuyama | |||
| Native Name Lang: | ja | ||
| Settlement Type: | City | ||
| Pushpin Map: | Japan | ||
| Pushpin Map Caption: | |||
| Coordinates: | 36.6569°N 140.1514°W | ||
| Subdivision Type: | Country | ||
| Subdivision Name: | Japan | ||
| Subdivision Type1: | Region | ||
| Subdivision Name1: | Kantō | ||
| Subdivision Type2: | Prefecture | ||
| Subdivision Name2: | Tochigi | ||
| Leader Title: | Mayor | ||
| Area Total Km2: | 174.35 | ||
| Population Total: | 25783 | ||
| Population As Of: | August 1, 2020 | ||
| Population Density Km2: | auto | ||
| Timezone1: | Japan Standard Time | ||
| Utc Offset1: | +9 | ||
| Blank Name Sec1: | Phone number | ||
| Blank Info Sec1: | 0287-83-1111 | ||
| Blank1 Name Sec1: | Address | ||
| Blank1 Info Sec1: | 1-1-1 Chuo, Nasukarasuyama-shi, Tochigi-ken 321-0692 | ||
| Blank Name Sec2: | Climate | ||
| Blank Info Sec2: | Cfa | ||
| Module: |
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right|thumb|Ryumon Falls is a city located in Tochigi Prefecture, Japan., the city had an estimated population of 25,783 in 10,509 households,[1] and a population density of 150 persons per km2. The total area of the city is 174.35sqkm.
Nasukarasuyama is located in the center-eastern part of Tochigi Prefecture, at the western foot of the Yamizo Mountains, at the southern end of the Shiona Hills, and in the middle reaches of the Naka River. The old Karasuyama town area is located on the right bank of the Naka River. The city is 30–35 km northeast from the prefectural capital of Utsunomiya. Nasukarasuyama is the political, economic, and administrative base for the eastern part of the prefecture.
Nasukarasuyama has a Humid continental climate (Köppen Cfa) characterized by warm summers and cold winters with heavy snowfall. The average annual temperature in Nasukarasuyama is . The average annual rainfall is with September as the wettest month. The temperatures are highest on average in August, at around, and lowest in January, at around .
Per Japanese census data,[2] the population of Nasukarasuyama has declined over the past 30 years.
The area began as a castle town for Karasuyama Domain in the Edo period, centered on Karasuyama Castle, a fortification dating to the Kamakura period. Karasuyama Town was established with the creation of the modern municipalities system on April 1, 1889. It merged with the neighboring villages of Mukada, Sakai, and Nanago on March 31, 1954. The modern city of Nasukarasuyama was established on October 1, 2005, from the merger of the towns of Karasuyama and Minaminasu (both from Nasu District).
Nasukarasuyama has a mayor-council form of government with a directly elected mayor and a unicameral city assembly of 17 members. Nasukarasuyama, together with the town of Nakagawa a collectively contributes one member to the Tochigi Prefectural Assembly. In terms of national politics, the town is part of Tochigi 3rd district of the lower house of the Diet of Japan.
Nasukarasuyama has primarily an agricultural economy, with a secondary emphasis on tourism.
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