Hyrcanian Forests


World Heritage Identification Number: 1584

World Heritage since: 2019

Category: Natural Heritage

Transboundary Heritage: Yes

Endangered Heritage: No

Country: Azerbaijan, Iran (Islamic Republic of)

Continent: NA

UNESCO World Region: Asia and the Pacific,Europe and North America

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Hyrcanian Forests: An Ancient Ecosystem of Biodiversity

The Hyrcanian Forests, a vast expanse of lush lowland and montane forests, cover approximately 55,000 square kilometers near the shores of the Caspian Sea in Iran and Azerbaijan. Named after the ancient region of Hyrcania, this unique forested massif has a rich history dating back 25 to 50 million years, making it one of the oldest forest systems in the Northern Temperate region. On July 5, 2019, the Hyrcanian Forests were officially recognized as a UNESCO World Heritage Site, further emphasizing their significance in global biodiversity.

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UNESCO Description of the World Heritage Site

The Hyrcanian Forests form a unique forested massif that stretches along the Caspian Sea in Azerbaijan and Iran. The history of these broad-leaved forests dates back 25 to 50 million years, when they covered most of this Northern Temperate region. Their floristic biodiversity is remarkable with over 3,200 vascular plant species documented. To date, 180 species of birds typical of broad-leaved temperate forests and 58 mammal species have been recorded. Elements of the property comprise full ecosystems including top predators such as leopard, wolf and brown bear, and the forest has a high degree of rare and endemic tree species. The oldest trees seen here are 300-400 years old, with some possibly up to 500 years old.

Encyclopedia Record: Hyrcanian forests

The Hyrcanian forests are a zone of lush lowland and montane forests covering about 55,000 square kilometres (21,000 sq mi) near the shores of the Caspian Sea in Iran and Azerbaijan. The forest is named after the ancient region of Hyrcania. The World Wide Fund for Nature refers to the ecoregion as the Caspian Hyrcanian mixed forests. Since 5 July 2019, the Hyrcanian Forests have been designated a UNESCO World Heritage Site. In September 2023, the heritage site expanded to incorporate portions of the forest located in Azerbaijan.

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Additional Site Details

Area: 145,004.7 hectares

UNESCO Criteria: (ix) — Outstanding example representing ecological and biological processes

Coordinates: 37.4214722222 , 55.7242777778

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Nearby World Heritage Sites

Gonbad-e Qābus
52 km — Iran (Islamic Republic of)
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433 km — Iran (Islamic Republic of)
The Persian Qanat
437 km — Iran (Islamic Republic of)
Last updated: January 18, 2026

Portions of the page Hyrcanian Forests are based on data from UNESCO — World Heritage List Dataset and on text from the Wikipedia article Hyrcanian forests, licensed under CC BY-SA 4.0. Changes made. Additional original content by World Heritage Explorer (WHE), licensed under CC BY-SA 4.0. WHE is not affiliated with UNESCO or the World Heritage Committee. Legal Notice. Privacy Policy.

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