Lake Sevan
Largest lake in Armenia, vital for irrigation, power, and culture.
Lake Sevan is the largest body of water in Armenia and the broader Caucasus region, and one of the largest freshwater alpine lakes in Eurasia. Located in Gegharkunik Province at an altitude of 1,900 m, it holds significant economic, cultural, and recreational value, providing most of Armenia's fish and crayfish catch. The lake was heavily exploited during the Soviet period for irrigation and hydroelectric power, leading to a dramatic drop in water level and volume, but later tunnels were built to divert water from highland rivers to aid recovery.
Quick Facts
- Location
- Gegharkunik Province, Armenia
- Inflow
- 28 rivers and streams
- Countries
- Armenia
- Agency
- Ministry of Environment
- Salinity
- 0.7%
- Elevation
- 1900.44 m (2012)
- Islands
- formerly 1 (now a peninsula)
- Sections
- 2 (Major Sevan, Minor Sevan)
Facts from the source article.
Lore & Background
Lake Sevan originated during the early Quaternary when tectonic formation created a Palaeo-Sevan ten times larger than the present lake; the current lake formed some 25 to 30 thousand years ago. In medieval Armenia, 'Sevan' referred to the lake's major island and its monastery, Sevanavank. Folk etymology suggests the name combines Armenian words for 'black' and 'monastery,' while a scholarly explanation traces it to the Urartian word 'suinia,' meaning 'lake,' attested on an 8th-century BC inscription by King Rusa I. Historical names include the Armenian 'Sea of Gegham,' the Georgian 'Gelakuni,' and the Turkic 'Gokcha' or 'Gökche' meaning 'blue lake.'
Reader's Guide
Lake Sevan is considered one of the three great 'seas' of historic Armenia, alongside Lake Van and Lake Urmia, and is the only one within the present-day Republic of Armenia. It is recognized as a national treasure and a strategic ecosystem. During the Soviet period, the lake was heavily exploited for irrigation of the Ararat plain and hydroelectric power generation, causing its water level to drop by about 20 m and its volume to reduce by more than 40%. This led to ecological degradation, including water quality deterioration and loss of biodiversity. To reverse the decline, two tunnels were built: the Arpa–Sevan tunnel (completed 1981) and the Vorotan–Arpa tunnel (inaugurated 2004), which divert water from highland rivers. Since the mid-2000s, the water level has begun rising significantly. The lake remains crucial for Armenia's economy, providing irrigation water, low-cost electricity, fish, recreation, and tourism.
Did You Know?
- Lake Sevan is fed by 28 rivers and streams; approximately 90% of the lake's water loss is due to evaporation, while the remaining 10% drains via the Hrazdan River.
- Before human intervention, the lake was 95 m deep and covered 1,416 km², about 5% of Armenia's entire area.
- The lake's sole major island, now a peninsula due to falling water levels, is the site of the medieval monastery Sevanavank.
- The name 'Sevan' may originate from the Urartian word 'suinia,' meaning 'lake,' found on an 8th-century BC inscription.
More in Great Lakes Of The World 1-24
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