The calculated distance (air line) between Uch-Korgon and Tash-Kumyr is approximately 78 miles respectively 125 kilometers.
By car or train, the actual journey to Tash-Kumyr is certainly longer, as only the direct route (as the crow flies) between Uch-Korgon and Tash-Kumyr has been calculated here.
Air line (approximately)
125 kilometers
67 nautical miles