The calculated distance (air line) between Kara-Kulja and Uch-Korgon is approximately 85 miles respectively 137 kilometers.
By car or train, the actual journey to Uch-Korgon is certainly longer, as only the direct route (as the crow flies) between Kara-Kulja and Uch-Korgon has been calculated here.
Air line (approximately)
137 kilometers
74 nautical miles