Okutama, Tokyo

Okutama
奥多摩町
Okutama Town Hall
Okutama Town Hall
Flag of Okutama
Official seal of Okutama
Location of Okutama in Tokyo
Location of Okutama in Tokyo
Okutama is located in Japan
Okutama
Okutama
 
Coordinates: 35°48′34.4″N 139°5′46.3″E / 35.809556°N 139.096194°E / 35.809556; 139.096194Coordinates: 35°48′34.4″N 139°5′46.3″E / 35.809556°N 139.096194°E / 35.809556; 139.096194
CountryJapan
RegionKantō
PrefectureTokyo
DistrictNishitama
Area
 • Total225.53 km2 (87.08 sq mi)
Population
 (April 2021)
 • Total4,949
 • Density22/km2 (57/sq mi)
Time zoneUTC+9 (Japan Standard Time)
Symbols 
• TreeCryptomeria
• FlowerAzalea
• BirdCopper pheasant
Phone number042-557-0501
Address215-6 Hikawa, Okutama-machi, Nishitama-gun, Tokyo 198-0212
WebsiteOfficial website
Fishing is popular in Okutama.

Okutama (奥多摩町, Oku-Tama-machi) is a town located in the western portion of Tokyo Metropolis, Japan. As of 1 April 2021, the town had an estimated population of 4,949, and a population density of 22 persons per km2.[1] The total area of the town is 225.53 square kilometres (87.08 sq mi).

Geography[]

Okutama is located in the Okutama Mountains of far western Tokyo. It is geographically the largest municipality in Tokyo. Mount Kumotori, Tokyo's highest peak at 2017 m, divides Okutama from the Okuchichibu region of the neighboring Saitama and Yamanashi Prefectures. Tokyo's northernmost and westernmost points lie in Okutama, as does Lake Okutama, an important source of water for Tokyo, situated above the Ogōchi Dam in the town.[2]

Mountains[]

Rivers[]

Lakes[]

Surrounding municipalities[]

Tokyo Metropolis

Saitama Prefecture

Yamanashi Prefecture

Climate[]

Okutama has a Humid subtropical climate (Köppen Cfa) characterized by warm summers and cool winters with light to no snowfall. The average annual temperature in Okutama is 10.6 °C. The average annual rainfall is 2091 mm with September as the wettest month. The temperatures are highest on average in August, at around 22.1 °C, and lowest in January, at around minus 1.1 °C.[7]

Climate data for Lake Okutama (1981 - 2010)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °C (°F) 17.8
(64.0)
20.9
(69.6)
22.5
(72.5)
30.6
(87.1)
33.0
(91.4)
34.3
(93.7)
35.8
(96.4)
36.4
(97.5)
35.0
(95.0)
29.1
(84.4)
23.8
(74.8)
22.1
(71.8)
36.4
(97.5)
Average high °C (°F) 6.7
(44.1)
7.1
(44.8)
10.3
(50.5)
16.3
(61.3)
20.5
(68.9)
23.0
(73.4)
26.8
(80.2)
28.2
(82.8)
23.9
(75.0)
18.4
(65.1)
13.8
(56.8)
9.3
(48.7)
17.1
(62.8)
Daily mean °C (°F) 1.3
(34.3)
1.8
(35.2)
5.0
(41.0)
10.6
(51.1)
15.1
(59.2)
18.5
(65.3)
22.0
(71.6)
23.2
(73.8)
19.5
(67.1)
13.8
(56.8)
8.5
(47.3)
3.8
(38.8)
11.9
(53.4)
Average low °C (°F) −2.7
(27.1)
−2.3
(27.9)
0.6
(33.1)
5.6
(42.1)
10.5
(50.9)
14.8
(58.6)
18.7
(65.7)
19.7
(67.5)
16.3
(61.3)
10.3
(50.5)
4.6
(40.3)
−0.1
(31.8)
8.19
(46.74)
Record low °C (°F) −9.3
(15.3)
−11.6
(11.1)
−8.1
(17.4)
−3.8
(25.2)
0.7
(33.3)
8.8
(47.8)
12.4
(54.3)
14.2
(57.6)
6.2
(43.2)
1.0
(33.8)
−2.1
(28.2)
−6.2
(20.8)
−11.6
(11.1)
Average precipitation mm (inches) 44.1
(1.74)
50.0
(1.97)
92.5
(3.64)
109.6
(4.31)
120.3
(4.74)
155.7
(6.13)
195.4
(7.69)
280.6
(11.05)
271.3
(10.68)
172.4
(6.79)
76.7
(3.02)
39.9
(1.57)
1,623.5
(63.92)
Average precipitation days (≥ 1.0 mm) 4.8 5.9 10.6 10.2 11.2 13.8 15.4 12.5 13.9 10.6 6.9 4.0 119.8
Mean monthly sunshine hours 147.1 127.7 132.2 161.8 154.9 109.8 127.6 148.3 99.1 94.5 122.1 145.6 1,570.7
Source 1: 気象庁
Source 2: 観測史上1〜10位の値(年間を通じての値)

Demographics[]

Per Japanese census data,[8] the population of Okutama has decreased steadily since the 1950s, and is now two-thirds of what it was a century ago.

Historical population
YearPop.±%
1920 9,514—    
1930 10,896+14.5%
1940 12,543+15.1%
1950 16,287+29.8%
1960 13,785−15.4%
1970 11,733−14.9%
1980 9,808−16.4%
1990 8,752−10.8%
2000 7,575−13.4%
2010 6,045−20.2%

History[]

Prehistory[]

People began settling in Okutama from before the Jōmon Period and many archaeological sites have been found with ancient pottery. During the Yayoi period, rice cultivation began in the flatter lands of present-day Okutama, but most of the area remained covered by forests and only small flat lands existed.[9]

Premodern period[]

During the Edo period, the area included in present-day Okutama was divided into 16 villages within Musashi Province. In each village, there was one person who served as the mayor, another who served as the leader of a particular group, and another who served as a representative for the farmers. Also, entering Mount Takanosu was forbidden for people of low rank during this time. This was because the people of high rank (government officials and such) hunted with hawks at the mountain, and the officials wanted to keep the hunting grounds for themselves.[9]

Modern period[]

With the start of the Meiji period, the area of Okutama became part of Nirayama Prefecture except for Kotaba village, which was merged into Maebashi Domain, which then became part of Gunma Prefecture. While Kotaba village was turned into part of Maebashi city, the Okutama area was divided into three villages of Hikawa, Kori, and Ogouchi with the establishment of the modern municipalities system on April 1, 1889. In 1940, Hikawa was elevated to town status. In 1955, Hikawa town, Ogouchi village and Kori village were united, forming the town of Okutama.[9]

Government[]

Okutama has a mayor-council form of government with a directly elected mayor and a unicameral town council of 12 members. Okutama, collectively with the municipalities of Akiruno, Fussa, Hamura, Hinode, Hinohara and Mizuho, contributes two members to the Tokyo Metropolitan Assembly. In terms of national politics, the city is part of Tokyo 25th district of the lower house of the Diet of Japan.

Economy[]

Seasonal tourism, forestry and charcoal production are mainstays of the local economy.

Education[]

Okutama has two public elementary and two public middle schools operated by the town government. The town does not have a high school.

Transportation[]

Oku-Tama Station

Railway[]

The East Japan Railway Company serves the town. The Ōme line, which connects the town with Tachikawa, terminates at Oku-Tama Station.

JR logo (east).svg JR East – - Ōme Line

Bus[]

The Nishi Tokyo Bus Co. carries passengers to Lake Okutama, the Nippara Limestone Cave, Tabayama village and Kosuge village (both in Yamanashi Prefecture) from Oku-Tama Station.

Highway[]

Sister city relations[]

Local attractions[]

A forest in the Okuchichibu Mountains

All of the town is located in Chichibu-Tama-Kai National Park.

View of Mount Kumotori from Mount Nanatsuishi

References[]

  1. ^ "Okutama town official statistics" (in Japanese). Japan.
  2. ^ 考える社会科地図 Kangaeru Shakaika Chizu. 四谷大塚出版 Yotsuya-Ōtsuka Shuppan. 2005. p. 113.
  3. ^ 奥多摩町観光案内-奥多摩トレッキングコース-雲取山
  4. ^ 奥多摩町観光案内-奥多摩トレッキングコース-御前山・三頭山 Archived 2007-11-15 at the Wayback Machine
  5. ^ 奥多摩町観光案内-奥多摩トレッキングコース-大岳山・御岳山
  6. ^ 奥多摩町観光案内-奥多摩トレッキングコース-川苔山
  7. ^ Okutama climate data
  8. ^ Okutama population statistics
  9. ^ a b c Introduction to Okutama Archived 2007-08-24 at the Wayback Machine
  10. ^ 楽しく学ぶ小学生の地図帳 Tanoshiku Manabu Shogakusei no Chizucho. 帝国書院 Teikoku-Shoin. 2004. p. 37.
  11. ^ "10 Lesser Known Places to Visit near Tokyo". 4 January 2015.

External links[]