Union Pacific GP9 No. 288 was assigned to haul a Speno Rail Grinder from Provo to Salt Lake City in March of '74.
A sunny April 1986 afternoon finds the Speno Rail Grinder slowly working west along Rio Grande's eastward main track at Provo Junction.
Rio Grande GP40-2s lead a Speno Rail Grinder along the westward main track at Provo Yard.
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