Analysis of information sources in references of the Wikipedia article "Feather River Route" in English language version.
From Salt Lake to San Francisco is 921 miles (1,482 km) over the Western Pacific, and as the distance from Sacramento to San Francisco over the same route is 139 miles (224 km), it follows that from the capital of California to the capital of Utah is 782 miles (1,259 km). While that is longer than the route of the Southern Pacific the lower grade over the new road enables it to more than make up in speed what it loses in distance.
[...] Salt Lake City is 4,224 feet (1,287 m) above sea level. The highest point on the Western Pacific is 5,819 feet (1,774 m) at Silver Zone, one hundred and fifty miles west of that city. So there is quite a rapid ascent going east, but from Silver Zone until California is reached the altitude is never less than 3800 feet, so that the natural grade is not heavy compared with some of the other roads. For 42 miles (68 km) in one place the road is perfectly straight and perfectly level, for other long distances it does not exceed two-fifths of 1 per cent, and it never passes 1 per cent.
From Salt Lake to San Francisco is 921 miles (1,482 km) over the Western Pacific, and as the distance from Sacramento to San Francisco over the same route is 139 miles (224 km), it follows that from the capital of California to the capital of Utah is 782 miles (1,259 km). While that is longer than the route of the Southern Pacific the lower grade over the new road enables it to more than make up in speed what it loses in distance.
[...] Salt Lake City is 4,224 feet (1,287 m) above sea level. The highest point on the Western Pacific is 5,819 feet (1,774 m) at Silver Zone, one hundred and fifty miles west of that city. So there is quite a rapid ascent going east, but from Silver Zone until California is reached the altitude is never less than 3800 feet, so that the natural grade is not heavy compared with some of the other roads. For 42 miles (68 km) in one place the road is perfectly straight and perfectly level, for other long distances it does not exceed two-fifths of 1 per cent, and it never passes 1 per cent.
