Maarg Manthan · Topic 7.8

World Heritage Sites and Geo-Heritage Sites

Environment & Ecology › Threats to Biodiversity and Conservation Strategies · Topic 7.8

A World Heritage Site is a place of outstanding universal value that is listed under the UNESCO Convention Concerning the Protection of the World Cultural and Natural Heritage, adopted in 1972 and in force from 1975. Sites are of three kinds: cultural, natural and mixed. Natural sites must meet one or more of four natural criteria (vii to x): superlative natural phenomena or beauty, earth's history and geological processes, ecological and biological processes, and significant habitats for biodiversity. India had 43 sites in 2024, of which seven are natural, including Kaziranga, Manas, Keoladeo, Sundarbans, Nanda Devi and Valley of Flowers, Western Ghats and Great Himalayan National Park; check the latest list. Geo-heritage sites are places of special geological interest, such as the Geological Survey of India's National Geological Monuments.

5 min read · UPSC Prelims · Environment & Ecology · Threats to Biodiversity and Conservation Strategies

At a Glance

Convention 1972 (in force 1975)
Kinds Cultural, natural, mixed
Natural criteria vii to x
Indian natural sites About seven
Geo-sites GSI monuments
Exam link UPSC Prelims, Environment & Ecology: Threats to Biodiversity and Conservation Strategies

Where Does It Fit?

This topic follows the account of biosphere reserves. It covers international designations of natural sites and the geological heritage list, which add to the in-situ network. Previous topic: Biosphere Reserves, Sacred Forests, Sacred Lakes. Next topic: Advantages and Disadvantages of In-Situ Conservation.

Which Indian Natural Sites Are on the World Heritage List?

Site	Details
Kaziranga National Park (1985)	Assam; one-horned rhino, tiger, swamp deer, wild water buffalo; criteria ix and x
Manas Wildlife Sanctuary (1985)	Assam; tiger, rhino, golden langur, pygmy hog; was on the Danger list 1992 to 2011
Keoladeo National Park (1985)	Rajasthan; bird sanctuary, Siberian crane wintering site (now rare); Ramsar site
Sundarbans National Park (1987)	West Bengal; mangrove delta, Bengal tiger
Nanda Devi and Valley of Flowers (1988, extended 2005)	Uttarakhand; alpine meadows and high peaks
Western Ghats (2012)	39 sites across Kerala, Tamil Nadu, Karnataka and Maharashtra; criteria ix and x
Great Himalayan National Park (2014)	Himachal Pradesh; western Himalaya biodiversity; musk deer, monal

What Are Criteria, the Danger List and Geo-Heritage Sites?

Natural criteria: (vii) superlative natural phenomena; (viii) earth’s history, geology; (ix) ecological and biological processes; (x) significant natural habitats for biodiversity
Cultural criteria: (i) to (vi)
Mixed site in India: Khangchendzonga National Park (2016), the only mixed site, meets natural and cultural criteria
Integrity: natural sites must be intact and well managed
World Heritage in Danger list: for sites under serious threat; Indian sites Manas was listed then removed
World Heritage Committee: meets yearly to inscribe sites
Tentative list: each country submits a list before nomination
Geo-heritage: Geological Survey of India has declared National Geological Monuments, such as Columnar basalt of Deccan Traps at St Mary’s Island in Karnataka, Lonar lake in Maharashtra and Barren Island volcano

What Else Should You Remember?

UNESCO: United Nations Educational, Scientific and Cultural Organization; Paris
Operational Guidelines: rules for listing
Advisory bodies: IUCN for natural sites, ICOMOS for cultural sites, ICCROM for conservation
Largest numbers: Italy and China have the most sites
Natural sites worldwide: about 230 natural, 900+ cultural, and some mixed
Indian total: 43 sites after the Moidams of Assam were added in 2024, with more added since; check the current list
Geopark: UNESCO Global Geoparks promote geoheritage; India has none on the list so far
Lonar Lake: a meteorite crater lake in basalt, in Maharashtra, also a Ramsar site
Barren Island: India’s only active volcano, in the Andaman Sea
Deccan Traps: flood basalts
Stromatolite: fossil structures at Tirumala hills and Jhamarkotra
Fossil parks: Mandla Plant Fossil National Park, Madhya Pradesh
Sivalik fossil park: Himachal Pradesh
Dinosaur Fossil Park: Balasinor in Gujarat
Geological Survey of India: identifies geo-heritage sites and monuments
Link to previous: see Biosphere Reserves, Sacred Forests, Sacred Lakes
Link to next: see Advantages and Disadvantages of In-Situ Conservation
Link to wetlands: see Coastal and Wetland Ecosystems macro for Ramsar sites
Caution: World Heritage listing is a recognition, not a separate national legal category; protection relies on national law
Exam hint: learn the Indian natural sites with year and state, and Khangchendzonga as mixed
Keoladeo: built in the 1700s as a duck shooting reserve of the Bharatpur rulers, it is now a wetland of international importance for water birds
Great Himalayan National Park: one of the sites with strict management of local use, and it protects the catchments of the Beas and Tirthan rivers
Nanda Devi: the peak is the second highest in India after Khangchendzonga, and the park is the core of a biosphere reserve
Valley of Flowers: described by explorer Frank Smythe in the 1930s, it is known for alpine flowers in the monsoon
Sundarbans site: the mangrove World Heritage Site shares a transboundary ecosystem with Bangladesh
Tentative list: India lists many places on its tentative list, including some natural sites such as the Kachchh coastal region; check the current list
Impact of listing: can bring funding, tourism and technical help but also visitor pressure
Monitoring: UNESCO and IUCN carry out state of conservation reviews and missions

Why Does It Matter for the Exam?

Criteria: vii to x
Sites: Kaziranga, Manas, Keoladeo, Sundarbans
Mixed: Khangchendzonga
Current affairs link: new inscriptions and geo-heritage law
Common errors: confusing Ramsar with World Heritage or ignoring the mixed site

As an analytical point, World Heritage status brings prestige, funds and scrutiny, but pressures from tourism, dams and roads can still threaten sites. Geo-heritage protection is a young field in India and needs legal backing.

Why Is This Topic Important?

Criteria Natural vii to x
India Natural sites
Geo GSI monuments

What Came Next?

The next topic covers the advantages and disadvantages of in-situ conservation. Next topic: Advantages and Disadvantages of In-Situ Conservation.

Key People and Terms

Outstanding universal value Core test for listing
Mixed site Natural and cultural
Geo-heritage Geological significance
Danger list Threatened heritage sites
Tentative list Pre-nomination list
National Geological Monument GSI-declared site

Exam Corner

Points to Remember

Convention adopted 1972.
Natural criteria vii to x.
Only mixed site: Khangchendzonga.
Western Ghats listed 2012.
GHNP listed 2014.

Do Not Confuse With

World Heritage and Ramsar site UNESCO heritage versus wetland convention
Natural and mixed site Natural only versus both
Geo-heritage and World Heritage Geological monuments versus UNESCO list

Memory Hook

Kaziranga, Manas, Keoladeo, Sundarbans, Nanda Devi, Ghats, Himalayan Park: seven natural, one mixed.

Mains Angle

Questions ask for sites and criteria. These points help.

Criteria Natural
Sites India
Geo Heritage

A Question You May Face

An original practice question, not a past paper question.

“Discuss the criteria for natural World Heritage Sites and list the Indian natural sites, with a note on geo-heritage sites.”

How to Answer

Criteria vii to x.
Sites Indian list.
Mixed Khangchendzonga.
Geo GSI.

GS Relevance

Prelims: criteria, Indian natural sites, geo-heritage. GS Paper 1 and 3: heritage and environment.

Frequently Asked Questions

What is a World Heritage Site?

A World Heritage Site is a landmark or area recognised by UNESCO as having outstanding universal value for humanity, whether cultural, natural or both. Sites are inscribed on the World Heritage List by the World Heritage Committee under the 1972 Convention, and the host country commits to protect them.

What are the natural heritage criteria?

Natural sites must meet at least one of four criteria: (vii) superlative natural phenomena or exceptional beauty, (viii) outstanding examples of earth's history and geological processes, (ix) significant ongoing ecological and biological processes, and (x) important natural habitats for biodiversity conservation, including threatened species.

Which Indian natural sites are on the World Heritage List?

India's natural sites include Kaziranga National Park, Manas Wildlife Sanctuary, Keoladeo National Park, Sundarbans National Park, Nanda Devi and Valley of Flowers National Parks, the Western Ghats and Great Himalayan National Park. Khangchendzonga National Park in Sikkim is India's only mixed natural and cultural site.

What are geo-heritage sites?

Geo-heritage sites are places of special geological, geomorphological or palaeontological value, such as volcanoes, fossil beds, impact craters and rock formations. In India the Geological Survey of India has notified National Geological Monuments, including St Mary's Island columnar basalt, Lonar crater lake and Barren Island volcano.

What is the World Heritage in Danger list?

The List of World Heritage in Danger names sites that face serious and specific threats, such as armed conflict, poaching, pollution or unplanned development. Listing draws international attention and aid. Manas Wildlife Sanctuary in India was placed on this list in 1992 due to unrest and poaching and removed in 2011.

PYQ Practice — Statement Analysis

1 Khangchendzonga National Park is a mixed World Heritage Site.

True

India's only mixed site.

2 Natural World Heritage criteria are numbered i to vi.

False

They are vii to x.

3 The Western Ghats were inscribed in 2012.