The question asks to identify the mountain pass that connects the Kullu valley with the Lahaul and Spiti valleys, both located within Himachal Pradesh, India.
Understanding the geography of Himachal Pradesh is key to answering this question. Several mountain passes exist in the region, but only one specifically links the Kullu valley to the higher-altitude Lahaul and Spiti valleys.
Therefore, the Rohtang Pass is the definitive connection between the Kullu valley and the Lahaul and Spiti valleys.
On which river is the Hirakud Dam situated?
For what reasons is the construction of huge dams opposed?
On which river is the Bhakra Nangal Dam situated?
Muga silk is the product of the silkworm, endemic to which state?
The Ganges is approximately _______ km long.