Question: Yukshin Gardan Sar and Gyachung Kang, are record breaking mountain what?
Sentence (from "Yukshin Gardan Sar"): Yukshin Gardan Sar (Urdu: ‎ ) is a high peak of the Hispar Muztagh, a subrange of the Karakoram range in Pakistan.
Relevant evidence: Yes