Helan Mountains References Helan Mountains mountains, China Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: Ningxia/ Land…of the plain are the Helan Mountains. These mountains serve as a shelter against the sandstorms from the Tengger (Tengri) Desert, which lies to the west of the mountains. Read More…of the plain are the Helan Mountains. These mountains serve as a shelter against the sandstorms from the Tengger (Tengri) Desert, which lies to the west of the mountains. Read More