Dzong Architecture - Siting of Dzongs

Siting of Dzongs

Bhutanese dzong architecture reached its zenith in the 17th century under the leadership of the great lama Shabdrung Ngawang Namgyal. The Shabdrung relied on visions and omens to site each of the dzongs. Modern military strategists would observe that the dzongs are well-sited with regard to their function as defensive fortresses. Wangdue Phodrang dzong, for instance, is set upon a spur overlooking the confluence of the Puna Chhu and Tang Chhu rivers thus blocking any attacks by southern invaders who attempted to use a river route to bypass the trackless slopes of the middle Himalayas in attacking central Bhutan. Drukgyel dzong at the head of Paro valley guards the traditional Tibetan invasion path over the passes of the high Himalayas.

Dzongs were frequently built on a hilltop or mountain spur. If the dzong is built on the side of a valley wall, a smaller dzong or watchtower is typically built directly uphill from the main dzong with the purpose of keeping the slope clear of attackers who might otherwise shoot downward into the courtyard of the main dzong below (see image at head of article). Pungtang Dechen Photrang Dzonga at Punakha is distinctive in that it is sited on a relatively flat spit of land at the confluence of the Mo Chhu and Pho Chhu rivers. The rivers surround the dzong on three sides, providing protection from attack. This siting proved inauspicious, however, when in 1994 a glacial lake 90 kilometers upstream burst through its ice dam to cause a massive flood on the Pho Chhu, damaging the dzong and taking 23 lives.