In June, 1860, the General Agent of the Pacific made another, more permanent change in mode of travel, this time east of Sacramento. Until then, the Pony Express, coming into the city, had followed the White Rock road from Placerville. What happened now may come as a shock to horse lovers and dedicated followers of Pony lore. Finney decided that the mail would ride the iron horse of the Sacramento Valley Railroad between Sacramento and Folsom, a distance of 22 miles. . . .
East of Folsom the route was laid along the Mormon Island-Green Valley section of the Overland Road to Placerville. ·The intervening distance required but one remount station, which was arranged for at the Pleasant Grove House. . . .
The unique arrangement didn’t eliminate any riders, but did release the horses at three remount stations along the White Rock road. These were then sorely needed in the Utah Territory where raiding Pah-Utes were busy running off stock from Pony stations all across the desert.