Monte San Giorgio


World Heritage Identification Number: 1090

World Heritage since: 2003

Category: Natural Heritage

Transboundary Heritage: Yes

Endangered Heritage: No

Country: Italy, Switzerland

Continent: NA

UNESCO World Region: Europe and North America

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Exploring the Fossil-Rich Marvel: Monte San Giorgio

Nestled amidst the picturesque landscape of the Lugano Prealps, straddling the border between Switzerland and Italy, lies the enigmatic Monte San Giorgio – a UNESCO World Heritage Site that offers more than just breathtaking vistas. This pyramid-shaped mountain, overlooking the tranquil waters of Lake Lugano in the Swiss canton of Ticino, has earned its place among the world's most significant geological sites due to its exceptional fossil record dating back approximately 245–230 million years.

More to come…

UNESCO Description of the World Heritage Site

The pyramid-shaped, wooded mountain of Monte San Giorgio beside Lake Lugano is regarded as the best fossil record of marine life from the Triassic Period (245–230 million years ago). The sequence records life in a tropical lagoon environment, sheltered and partially separated from the open sea by an offshore reef. Diverse marine life flourished within this lagoon, including reptiles, fish, bivalves, ammonites, echinoderms and crustaceans. Because the lagoon was near land, the remains also include land-based fossils of reptiles, insects and plants, resulting in an extremely rich source of fossils.

Encyclopedia Record: Monte San Giorgio

Monte San Giorgio is a Swiss mountain and UNESCO World Heritage Site near the border between Switzerland and Italy. It is part of the Lugano Prealps, overlooking Lake Lugano in the Swiss Canton of Ticino.

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Additional Site Details

Area: 1,089.34 hectares

UNESCO Criteria: (viii) — Outstanding example representing major earth stages

Coordinates: 45.8888888889 , 8.9138888889

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Image of Monte San Giorgio

© Roland Zumbühl, CC BY-SA 3.0 Resized from original. (This derivative is under the same CC BY-SA license.)

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Last updated: January 18, 2026

Portions of the page Monte San Giorgio are based on data from UNESCO — World Heritage List Dataset and on text from the Wikipedia article Monte San Giorgio, 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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