Evan Lake, also known by its Persian name Evan Lake, is a stunning small alpine lake located in the Alamut region of the Alborz Mountain range, within Qazvin Province in northwestern Iran. It’s a significant natural and tourist attraction known for its serene beauty and recreational opportunities.

Geography and Location:

• Region: Alamut Valley, Alborz Mountains.
• Province: Qazvin.
• Proximity: Approximately 75 kilometers (47 miles) northeast of Qazvin city.
• Elevation: Situated at an altitude of about 1,800 to 1,815 meters (5,900 to 5,955 feet) above sea level.
• Surrounding Villages: The lake is bordered by four villages: Varbon, Avan (from which it gets its name), Zavardasht, and Zarabad.

Hydrology and Formation:

• Water Source: Evan Lake is primarily fed by rainwater and numerous underground springs, particularly from the lake floor. It also receives water from a stream named Evan that flows down from the northern mountains.
• Water Quality: The water is renowned for its clarity and transparency.
• Basin Area: It covers an area of about 70,000 square meters (approximately 17 acres).
• Depth: The maximum depth of the lake is around 7.5 meters (25 feet), with an average depth often cited as around 6 meters (20 feet).
• Outflow: Excess water from the lake forms a small river that irrigates the farmlands in the villages of Kushk and Ain.
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Ecology and Biodiversity:

• Flora: The vicinity of Evan Lake is rich in vegetation, including various trees like apple, plane, willow, cherry, walnut, and hazelnut. Medicinal plants are also found in the surrounding mountains. Aquatic plants like water lilies, seaweeds, and reeds grow within the lake.
• Fauna: The lake and its surrounding areas are home to a diverse range of wildlife. This includes animals such as goats, leopards, brown bears, foxes, wolves, jackals, deer, lynx, wild boar, eagles, vultures, falcons, owls, partridges, woodpeckers, and various species of sparrows. Aquatic life includes turtles, frogs, and crabs. The lake itself hosts fish species like carp, rainbow trout, and catfish.
• Migratory Birds: During the autumn, Evan Lake becomes a haven for migratory birds, including swans, geese, and ducks.

Climate and Seasons:

• Mountainous Climate: The region experiences a cold, mountainous climate due to its high altitude.
• Winter: Winters are cold, with heavy snowfall at times. The lake’s surface often freezes, making it suitable for ice skating and skiing.
• Spring and Summer: These are the most pleasant seasons. The weather is cool and clear, the vegetation is lush, and the lake is full. This is the peak tourist season.
• Autumn: The weather becomes significantly colder, and the lake starts to host migratory birds.

Tourism and Recreation: Evan Lake is a popular destination for both domestic and international tourists seeking natural beauty and outdoor activities.

• Scenery: The lake is celebrated for its picturesque setting, surrounded by mountains and lush greenery, with the clear water reflecting the sky and surrounding landscape.
• Activities:
  • Boating: A popular activity during the warmer months, offering a different perspective of the lake and its surroundings.
  • Fishing: Recreational fishing for species like trout and carp is common.
  • Swimming: Allowed in summer, though visitors are cautioned about its depth and potential dangers.
  • Hiking and Trekking: The surrounding mountains offer excellent opportunities for hiking.
  • Photography: The stunning landscapes make it a prime spot for photographers.
  • Cycling: The roads around the lake are scenic routes for cyclists.
  • Picnicking and Camping: The serene environment is ideal for outdoor relaxation.
  • Ice Skating and Skiing: Possible in winter when the lake freezes over.
  • Bird Watching: Especially popular in autumn.

Cultural and Historical Significance: Evan Lake is located in the historic Alamut region, famous for the Alamut Castle, the former stronghold of the Nizari Ismailis. This historical context adds another layer of interest for visitors. The name “Evan” itself is said to mean “a place to gather water” or “a place where water gathers” in the local dialect.

Conservation and Access:

• National Heritage Site: Evan Lake has been registered as the 89th National Natural Heritage Site in Iran.
• Access: The lake is accessible via a road that connects Qazvin to East Alamut. The road leading to the lake is generally well-maintained, making it relatively easy to reach.
• Facilities: Amenities like campgrounds and guesthouses are available around the lake, catering to visitors.
• Regulations: Hunting and shooting are prohibited in the Alamut area. Visitors are encouraged to respect the natural environment and avoid littering or damaging the surroundings.

Evan Lake is a gem of Qazvin province, offering a tranquil escape and a blend of natural beauty, recreational possibilities, and historical intrigue.