# Ol Doinyo Lengai

> mountain in Tanzania

**Wikidata**: [Q746787](https://www.wikidata.org/wiki/Q746787)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Ol_Doinyo_Lengai)  
**Source**: https://4ort.xyz/entity/ol-doinyo-lengai

## Summary
Ol Doinyo Lengai is a mountain in Tanzania, also known by the alias Oldoinyo Lengai. It is located at latitude -2.7616666666667 and longitude 35.913333333333, and is associated with Ngorongoro District in Arusha Region, Tanzania.

## Key Facts
- Ol Doinyo Lengai is a mountain (a large natural elevation of the Earth's surface).
- Alias: Oldoinyo Lengai.
- Coordinates: latitude -2.7616666666667, longitude 35.913333333333.
- Administrative association: Ngorongoro District, which is in Arusha Region, Tanzania.
- Country location: Tanzania, a sovereign state in East Africa.
- Wikidata description: "mountain in Tanzania".
- Wikipedia title: Ol Doinyo Lengai.
- Wikidata sitelink_count for Ol Doinyo Lengai: 47.
- Tanzania (the country containing Ol Doinyo Lengai) was formed on April 26, 1964.
- Tanzania's capital (official since February 1, 1996) is Dodoma; Dar es Salaam remains the largest city and commercial hub.
- Tanzania's head of state and government (as provided) is Samia Suluhu Hassan, who took office March 19, 2021.
- Tanzania population (as provided): 61,741,120 (as of August 3, 2022).
- Tanzania area (as provided): 947,303 square kilometres.
- Tanzania highest point (as provided): Mount Kilimanjaro (Kibo) at 5,895 metres — contextual national geography.
- Tanzania official languages (as provided): Swahili and English (both de facto).
- Tanzania currency: Tanzanian shilling.
- Tanzania timezone: UTC+03:00 (East Africa Time); IANA timezone Africa/Dar_es_Salaam.
- Tanzania internet TLD: .tz; international calling code: +255; ISO codes: Alpha-2 TZ, Alpha-3 TZA, Numeric 834.
- Tanzania memberships (selected, as provided): United Nations (since April 26, 1964), Commonwealth of Nations (since December 9, 1961), African Union (since January 16, 1964), World Trade Organization (since January 1, 1995).
- Ngorongoro District is a district in Arusha Region, Tanzania (sitelink_count: 14).

## FAQs
Q: What is Ol Doinyo Lengai?
A: Ol Doinyo Lengai is a mountain in Tanzania. It is recorded on Wikidata and Wikipedia under the title "Ol Doinyo Lengai" and has the alias Oldoinyo Lengai.

Q: Where exactly is Ol Doinyo Lengai located?
A: The mountain's coordinates are latitude -2.7616666666667 and longitude 35.913333333333. Administratively it is associated with Ngorongoro District in Arusha Region, within the country of Tanzania.

Q: What administrative jurisdictions govern Ol Doinyo Lengai?
A: Ol Doinyo Lengai is associated with Ngorongoro District, which is part of Arusha Region in Tanzania. Tanzania is the sovereign state that contains the mountain.

Q: How is Ol Doinyo Lengai represented in online knowledge bases?
A: On Wikidata it is described as a "mountain in Tanzania" with a sitelink_count of 47, and the corresponding Wikipedia title is "Ol Doinyo Lengai."

Q: What country-level context is relevant to Ol Doinyo Lengai?
A: Ol Doinyo Lengai sits within Tanzania, a country in East Africa formed on April 26, 1964, with capital Dodoma, a population of about 61.7 million (as of August 3, 2022), and official languages Swahili and English.

## Why It Matters
Ol Doinyo Lengai matters as a named geographic feature within Tanzania's diverse physical landscape. Mountains are fundamental elements of a country's geography and can influence local administration, mapping, tourism, conservation planning, and scientific study. Because Ol Doinyo Lengai is linked to Ngorongoro District and Arusha Region, it is part of the administrative, ecological, and cartographic systems of Tanzania. Its formal presence in global knowledge bases (Wikidata and Wikipedia) with defined coordinates ensures the mountain can be precisely located, referenced in research, and integrated into spatial datasets that support planning, navigation, and education.

## Notable For
- Official name and alias: recorded both as Ol Doinyo Lengai and Oldoinyo Lengai.
- Precise geolocation: coordinates provided to high precision (lat -2.7616666666667, lon 35.913333333333).
- Administrative linkage: explicitly associated with Ngorongoro District in Arusha Region, Tanzania.
- Presence in knowledge repositories: Wikidata entry described as "mountain in Tanzania" and a Wikipedia article titled "Ol Doinyo Lengai"; the Wikidata sitelink_count is 47, indicating multi-language or multi-resource linkage.

## Body

### Identification
- Name: Ol Doinyo Lengai.
- Alias: Oldoinyo Lengai.
- Classification: mountain — described in the source as a large natural elevation of the Earth's surface.
- Wikidata description: "mountain in Tanzania".
- Wikipedia title: Ol Doinyo Lengai.
- Wikidata sitelink_count: 47, indicating linked resources across Wikimedia projects.

### Location and Coordinates
- Geographic coordinates are latitude -2.7616666666667 and longitude 35.913333333333. These coordinates provide a precise point location for mapping and geospatial reference.
- The mountain is located within the national boundaries of Tanzania, an East African country.

### Administrative Context
- Ol Doinyo Lengai is associated with Ngorongoro District. Ngorongoro District is a district in Arusha Region, Tanzania.
- Arusha Region is one of the administrative regions of Tanzania; the mountain therefore falls under regional and district-level administrative frameworks in Tanzania.

### Relationship to Tanzania (country-level context)
- Country: Tanzania (officially the United Republic of Tanzania), located in East Africa.
- Formation: Tanzania was formed on April 26, 1964, by union of Tanganyika and Zanzibar.
- Capital: Dodoma (official since February 1, 1996); Dar es Salaam remains the largest city and commercial hub.
- Head of state/government (as provided): Samia Suluhu Hassan (since March 19, 2021).
- Population (as provided): 61,741,120 (as of August 3, 2022).
- Area (as provided): 947,303 square kilometres.
- Notable geographic context: Tanzania's highest point is Mount Kilimanjaro (Kibo) at 5,895 metres; the country's geography includes coastlines on the Indian Ocean and major lakes such as Lake Victoria.
- Languages: Swahili and English are provided as official languages (both de facto); Swahili is described as the de facto national language.
- Currency: Tanzanian shilling.
- Timezone and technical identifiers: UTC+03:00 (East Africa Time); IANA timezone Africa/Dar_es_Salaam; country codes and identifiers include TLD .tz, calling code +255, ISO codes TZ/TZA/834.
- International memberships (selected): United Nations (since April 26, 1964), Commonwealth of Nations (since December 9, 1961), African Union (since January 16, 1964), World Trade Organization (since January 1, 1995), among others listed in the provided material.
- Emergency numbers and infrastructure facts (contextual national data): mains voltage 230 V at 50 Hz; plug types BS 1363; driving side left; emergency numbers 112 (police), 114 (fire), 115 (medical).

### Related Entities and Administrative Links
- Ngorongoro District: identified as the district linked to Ol Doinyo Lengai; Ngorongoro District is part of Arusha Region in Tanzania.
- Arusha Region: one of the administrative regions of Tanzania; Ngorongoro District belongs to this region.

### Knowledge Base and Metadata
- Wikidata and Wikipedia: Ol Doinyo Lengai has a Wikidata entry described as "mountain in Tanzania" and a corresponding Wikipedia page titled "Ol Doinyo Lengai."
- Sitelink and representation: the mountain's Wikidata sitelink_count is 47, indicating it is represented across multiple Wikimedia sites or languages.
- Structured properties recorded for the mountain include aliases and precise coordinates as provided.

### Contextual Significance and Use Cases
- Cartography and GIS: the precise coordinates enable accurate mapping and inclusion in geospatial datasets for navigation, research, and planning.
- Administrative planning: association with Ngorongoro District and Arusha Region places the mountain within defined local governance structures relevant to land use, tourism, and regional development.
- Reference and research: the mountain’s entries in Wikidata and Wikipedia create a persistent identifier and human-readable resource for scholars, students, and the public.

### References within the provided material
- The mountain’s relationships include the link to Ngorongoro District (a district in Arusha Region, Tanzania) and the broader set of country-level details about Tanzania — its formation, governance, demographics, geography, infrastructure, and international memberships — all as provided in the source material.

(End of entry.)

## References

1. Virtual International Authority File
2. CNMNC Newsletter 26 (June and July 2015)
3. Freebase Data Dumps. 2013
4. GeoNames
5. peakbagger.com
6. Quora
7. National Library of Israel Names and Subjects Authority File