The farthest and the most isolated part of the Suru Valley, Rangdum, is an elliptical expanded plateau surrounded by colourful hills on one side and glacier encrusted rocky mountains on the other. Situated 130 km south-east of Kargil, it falls midway between Kargil and Padum. Due to it's remoteness from inhabited parts either of Suru or Zanskar, the area's wild beauty is almost haunting, while it's isolation is near perfect even as the unpaved Zanskar road traverses it's length.

The chief attraction of this area is an imposing 18th century Buddhist monastery with about 40 monks in residence. Perched picturesquely atop a centrally rising hillock which is entrenched around by the bifurcated course of a wild mountain stream, the Rangdum monastery has the aura of an ancient fortification guarding a mystical mountain valley.  The villagers are descendents of the monastery's agricultural, serf-tenants, who do not own any land in the region. The monastery enjoys perpetual and unalienable ownership of the entire valley including the fields tilled by the villagers, the pastures, hills and even the streams.

Rangdum also serves as an important trekking base. The most popular trek from here leads to Henaskut near Lamayuru, across the spectacular gorge of the Kanji valley. This 5 day trek also forms the last leg of the two week long trans-Himalayan traverse between Kashmir and Ladakh.