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Kalinjar Fort Hill Declared National Geo-Heritage Site

20 March 20261 min read
ENVIRONMENT & ECOLOGYKalinjar Fort HillDeclared NationalGeo-Heritage Site20 March 2026safalsetu.com

Why in the news

The Geological Survey of India (GSI) gave national geo-heritage status to the hill on which Kalinjar Fort stands in Uttar Pradesh.

Key facts

  • Declared by: Geological Survey of India (GSI).
  • Site: Kalinjar Fort hill, Uttar Pradesh.
  • Status: National Geo-Heritage Site.
  • Feature: the rare Eparchaean Unconformity.
  • Time gap shown: about 1.3 billion years.

Geology of the site

LayerRock
Lower, olderAncient Bundelkhand granite
Upper, youngerKaimur sandstone

The exposed contact between these two rocks reveals the unconformity.

Significance

  • The recognition underlines the scientific, geological and historical value of the hill.

Exam angle

  • Agency: Geological Survey of India.
  • Term: Eparchaean Unconformity, a 1.3 billion-year gap.
  • Rocks: Bundelkhand granite beneath Kaimur sandstone.

Test yourself

1. Which organisation declared Kalinjar Fort hill a National Geo-Heritage Site?

The Geological Survey of India made the declaration.

2. Which rare geological feature is exposed at Kalinjar Fort hill?

The site shows the rare Eparchaean Unconformity.

3. Kalinjar Fort hill's unconformity shows a geological gap of about how many years?

The gap shown is about 1.3 billion years.