Gasa, the northernmost district of the country adjoins the districts of Punakha, Thimphu and Wangdue Phodrang and with Tibet to its north. This starkly beautiful region with elevations ranging from 1500 to 4,500 metres experiences extremely long and cold winters and short but beautiful summers.
It has the smallest population with just about 3000 inhabitants. This region is inhabited by the Layaps, nomadic herders with a unique culture. Their main sources revenue come from trading products made from their yaks, such as yak hair textiles, cheese, butter and yak meat . They also harvest and sell Cordyceps, (a fungus of extremely high value that is frequently used in oriental medicine).