Monchegorsk Air Base is a military air base in Murmansk Oblast, Russia located 13 km northeast of Monchegorsk and 11 miles southwest of Olenya. It hosted the 174th Guards Fighter Aviation Regiment (174 Gv IAP) flying MiG-25PDS aircraft in the 1980s and MiG-31 interceptors in the 1990s. It also hosted a reconnaissance regiment, the 98 ORAP (98th Separate Reconnaissance Aviation Regiment) flying MiG-25RB, Su-17, Su-24MR, and MiG-31 aircraft. For much of the Cold War fighter regiments at the base were under control of Air Defence Corps of the 10th Air Defence Army.