September 9, 2023 - Storytrails

September 9, 2023

The Great Trigonometrical Survey of India was the largest measurement of the Earth’s surface ever attempted. Apart from mapping the country, the project measured the height of Mount Everest, the tallest peak in the world, and even corroborated Newton’s theory about the shape of the Earth. This is the story of the man who led this massive project – Col. William Lambton.