National Geological Monuments are geographical areas of national importance andheritage, as notified by theGovernment of India'sGeological Survey of India (GSI), for their maintenance, protection, promotion and enhancement ofgeotourism.[1][2][3]
There are 34 notified National Geological Heritage Monument Sites of India. GSI or the respective State governments are responsible for taking necessary measures to protect these sites.[2][3]
There are 12 geo-tourism sites inNortheast India notified by the Geological Survey of India (GSI) for promotion of geo-tourism.[5][6][7]
| No. | Image | Geo-Heritage site | Location | District | State | Geotourism Category and reference |
|---|---|---|---|---|---|---|
| 1 | Mawmluh Cave | Cherrapunji | East Khasi Hills district | Meghalaya | Geo-tourism: Cave belongs toMeghalayan Age, which is a major abrupt climatic event with critical drought and cooling 4,200 years ago which was determined from astalagmite from Mawmluh cave.[8] In thegeologic time scale, theMeghalayan is the latestage or uppermoststage of theQuaternary.[9] | |
| 2 | Mawblei God’s Rock | East Khasi Hills district | Meghalaya | Geo-tourism: A megalith,Mahadek sandstone of Khasi group of cretaceous period, inclined at 45 degrees on a slope of a hill ofWahrashi River valley is a sacred site forKhasi people.[8] | ||
| 3 | Therriaghat | East Khasi Hills district | Meghalaya | Geo-tourism: Best-preserved and most completeCretaceous-Paleogene boundary in India.Cretaceous–Paleogene extinction event at the end of theCretaceous period caused sudden extinction of the large vertebrates,plankton and many tropical invertebrates.[8] | ||
| 4 | Majuli | Majuli island | Majuli district | Assam | Geo-tourism: World's largest river island inBrahmaputra river has sacred HinduVaishnavitesampradaya'ssatra (kshetra or monasteries) set up by in 15th-16th centurySrimanta Sankaradeva. The eco-region is conserved by theSrimanta Sankaradeva Sangha.[8] | |
| 5 | Umananda Island | Brahmaputra river | Guwahati | Assam | Geo-tourism: islet is aninselberg made of rocks ofAssam-Meghalaya gneissic complex.[8] | |
| 6 | Chabimura | Gomati district | Tripura | Geo-tourism: 15th-16th century sacred Hindu site with rock carvings on a cliff ofGomti River with massive rock cut images ofShiva,Vishnu,Karthikeya,Durga and other Hindu deities highest of which is 20 ft.[8] | ||
| 7 | Unakoti | Unakoti district | Tripura | Geo-tourism: 7th-9th centuries rock-cut sculptures and Shaiva temples.Unakotiswara Kal Bhairava shiva statue is 30 feet tall.[8] | ||
| 8 | Sangetsar Tso | Tawang district | Arunachal Pradesh | Geo-tourism: Also called as Madhuri Lake, created by damming of river due to earthquake in 1950, is nestled in a lush valley midst of snowy mountain peaks and freezes in winter.[8] | ||
| 9 | Loktak Lake | Bishnupur district | Manipur | Geo-tourism: It is aphumdi (floating biomass) withphumsangs (tribal huts of fishermen) which is also theKeibul Lamjao National Park - world's only floating wildlife habitat on the southwestern part of lake.[8] | ||
| 10 | Reiek Tlang | Aizawl | Mizoram | Geo-tourism: It is acuesta (a hill with a gentle slope on one side and a steep slope on the other) created by erosion of thetertiary sandshalealterations.[8] | ||
| 11 | Nagahill Ophiolite Site | Pungro | Kiphire district | Nagaland | Geo-tourism:[8] | |
| 12 | Mamley Stromatolite Park | Namchi | South Sikkim district | Sikkim | Geo-tourism: Also called "Buxa Formation of Mamley", isAlgal mat#StromatolitesStromatolite Algal mat with circular structures in the limestone ofProterozoicBuxa Formation microbiota microfossils of Ranjit Window is rare examples of early life on Earth in the Sikkim Himalayas.[8] |