How to dig cordyceps

The Jidar village, Baxoi County, Qamdo City, Southwest China's Tibet Autonomous Region ,with average elevation above 4500 meters, is about 900 kilometers away from Lhasa, Tibet. The whole village is semi-agricultural and semi-husbandry with excavation of cordyceps as the main source of income. 

As the growing environment is extremely strict for cordyceps, the excavation duration is short, with only 15 days per year. During the period , every villager can dig almost 12 cordyceps per day, and a family can make an income of 80,000 yuan (12, 072 US dollars) per year at most and 30,000 yuan (4, 527 US dollars) per year at least.