He was sent by the museum to participate in a minor capacity in the excavations of the Western Xia tombs at the foot of the Helan Mountains, and whilst his new wife (Yang Shende 楊慎德) and children stayed behind at Yinchuan, he lived and worked at the excavations for seven years.
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The Helan Shan pika is known only from the Helan Mountains in the Inner Mongolian Autonomous Region of China which lie between the semi-arid Ordos Desert and the Yellow River Valley to the east and the Badain Jaran Desert to the west.