Adjoining the Pangi valley is Lahaul valley where most of the people believe in Buddhism. Spiti is the sub division of Lahaul and follow the same religion. Hence both these valleys are having some important and known Monasteries. Like temples here too the villagers have small gompas in almost every village. The people are charming, friendly and hospitable with their The two twin valleys Lahaul & Spiti in the north eastern corner of Himachal, protected by distance, is a region of nature at its wildest which has lent it much enchantment. The threshold of the Lahaul plateau is nourished by Chandra & Bhaga rivers. Dry and very cold, it is surrounded by high mountain on all sides, the great Himalayan in the north ,the Pir Panjal to the south and the Spiti – Chandra  watershed to the east. From Lahaul, the Himalayas can be seen in all their mighty splendour. The barren   landscape and sparse vegetation  lends a magnificent charm to this otherwise bleak country. With their slant Mongol eyes, prominent cheek bones and cheerful smiles, the people give visitors an enthusiastic welcome Rahul was the son of Buddha and the name Lahaul is derived from Rahul.

Eastern Valleys:

From kinnaur side the road goes along the Spiti river at an average height of 3500 meters. The first valley is along Gui Nallah (stream) which join Lingti valley in North. Lingti is the one of the longest and largest valley of the Spiti. It is about 50 to 60 km long and Gyah Peak (6794m) is located at its north eastern head. Further head. Further ahead of Kaza there are valleys along Shilla nallah and Parlungbi nallah. This nallah goes to  Prangla (5600m) and Takling La (5500m).

Western Valleys:

They join Kinnaur and Kullu. Pin river flows from south-west opposite to Lingti river through pin valley. This valley gives an entrance to the Spiti valley. Teri khango(4865m) leads to the Pin valley from Bhabha valley of Kinnaur. The Manirang La (5520m)connects Ropa Valley of Kinnaur to Pin valley. Slightly to the West Pin Parbati Pass(5319m) leads to Parbati valley of Kullu. North of Pin valley are Parahio, Ratang and Gyundi valleys. They have many peaks which are still virgin.