Sham (lower region) lies on both sides of the main Spiti river between its confluence with Lingti and its junction with the Pare Chu. Pin lies on both sides of the Pin River. Pin is the home of chaumurti horses and the mysterious Buzhen lamas, famous for performing a unique trance ritual in which demons hiding in a rock are banished after a long ceremony in which the rock is broken on the chest of a monk. Bhar (middle region) is the local name for the Spiti valley lying between the point where Shillah Nullah meets the main river about three kilometers above Kaza and Sham. Bhar owes its importance to Spiti's biggest monastery, Kye Gompa, and to its second most beautiful, the Serkhang of Lhalung in the Lingti valley. Tud (higher region) includes all portions of the territory above Bhar. This region includes several minor but important villages like Hansa, Kyoto and Losar which have preserved the traditional lifestyle of the Spitians. It’s easy to circuit all these regions if you are travelling through Spiti. If you enter Spiti from Lahaul (via Manali), you first enter the higher Tud region (Losar and Hansa), then drive through the middle region of Bhar (Kaza) and exit through the lower Sham region (Dhankar and Tabo). A side trip to the Pin Valley brings you to the Pin region and a chance to see rare wildlife like the ibex and snow leopard.
4. In Spiti, the only petrol pump is at Kaza.