F-106A 57-2460 of the 186 FIS, 120 FIG Montana ANG 'Big Sky Country' Great Falls MT. This shot of 57-2460 tail was taken by TSgt Dane Donnelly at Great Falls International Airport in spring 1977. Sadly, 57-2460 on a routine training mission over southern Alberta only a few months later on 9 June 1977 crashed with the loss of the pilot, 1st Lieutenant David Denning.