Five units lead a westbound oil train on the main at East Portal at an altitude of over 9,000 feet (2,700 meters) above sea level, the Moffat is the highest active mainline of any Class 1 Railroad in the United States. About 15 years ago, UP extended Tolland siding, increasing its length from 5,600 feet to over 9,000 feet. Consequently, the siding at East Portal is seemingly never used for meets these days.
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