UPSC Prelims 2020 question on Siachen Glacier Location

The Nubra Valley acts as the gateway to the strategically important Siachen Glacier and Karakoram Pass.

The Karakoram Pass in the northwest side connects the valley with Xinjiang, China. The area was once part of ancient Himalayan trade path, the Silk Route that connected China to Middle East.

The Nubra River is a river in the Nubra Valley of Ladakh in India. It is a tributary of the Shyok River (a part of the Indus River system) and originates from the Siachen Glacier, the second-longest non-polar glacier in the world.

Siachen Glacier is situated to the North of Nubra Valley — the Nubra Valley lies to its south, acting as the gateway.

Hence option (d) — North of Nubra Valley — is the correct answer.