The calculated distance (air line) between Xianshuigu and Xitangtuo is approximately 24 miles respectively 39 kilometers.
By car or train, the actual journey to Xitangtuo is certainly longer, as only the direct route (as the crow flies) between Xianshuigu and Xitangtuo has been calculated here.
Air line (approximately)
39 kilometers
21 nautical miles