Thangu Valley or Thangu-Chopta Valley is a town located in Mangan District in Sikkim, India.

[1] The population is at an estimated 1,000 residents.

[2] Thangu valley is situated in the northern part of the Sikkim province, roughly 30 kilometers (18.6 miles) North of the larger town of Lachen.

It is a common stop for tourists traveling to Gurudongmar Lake[3]