ity ▁supplied ▁by ▁the ▁N ava jo ▁Trib al ▁Util ity ▁Author ity . ▁ ▁During ▁normal ▁operations , ▁the ▁rail road ▁operated ▁three ▁round ▁tri ps ▁per ▁day . ▁Between ▁ 1 9 7 3 ▁and ▁ 1 9 7 6 , ▁six ▁E 6 0 CF s ▁locomot ives ▁were ▁purchased ▁new . ▁In ▁ 1 9 9 9 , ▁some ▁ 1 9 8 2 / 8 3 ▁built ▁E 6 0 C - 2 s ▁were ▁purchased ▁from ▁Fer roc arr iles ▁Nacional es ▁de ▁México ▁and ▁over h au led ▁including ▁conversion ▁from ▁ 2 5 ▁k V . ▁ ▁Fort y ▁new ▁al umin um ▁coal ▁ho ppers ▁were ▁purchased ▁from ▁Fre ight Car ▁America ▁to ▁replace ▁some ▁of ▁the ▁ag ing ▁fleet ▁of ▁ 3 0 ▁year - old ▁F MC ▁and ▁Ort ner ▁ho ppers . ▁ ▁The ▁rail road ' s ▁final ▁delivery ▁to ▁the ▁N ava jo ▁Gener ating ▁Station ▁was ▁August ▁ 2 6 , ▁ 2 0 1 9 . ▁The ▁power ▁plant ▁is ▁to ▁shut ▁down ▁in ▁December ▁ 2 0 1 9 ▁due ▁to ▁competition ▁from ▁che aper ▁energy ▁sources . ▁ ▁The ▁elect rical ▁components ▁of ▁the ▁railway ▁are ▁currently ▁being ▁dis m ant led . ▁ ▁See ▁also ▁▁▁ ▁List ▁of ▁Arizona ▁rail ro ads ▁ ▁Mine ▁railway ▁ ▁N ava jo ▁Mine ▁Rail road ▁- ▁other ▁( former ly ) ▁electric ▁rail road ▁on ▁N ava jo ▁land ▁ ▁References ▁ ▁External ▁links ▁▁▁▁▁▁▁ ▁Category :