At the time Warren Upson would have ridden through here in 1860, the area was known as Slippery Ford, later to change its name to Kyburz sone fifty years later.
John Fremont’s 1845 account: February 25th. Believing that the difficulties of the road were passed, and leaving Mr. Fitzpatrick to follow slowly, as the condition of the animals required, I started ahead this morning with a party of eight, consisting (with myself) of Mr. Preuss, Mr. Talbot, Carson, Derosier, Towns, Preuss, and Jacob. We took with us some of the best animals, and my intention was to proceed as rapidly as possible to the house of Mr. Sutter, and return to meet the party with a supply of provisions and fresh animals. Continuing down the river, which pursued a very direct westerly course through a narrow valley, with only very slight and narrow bottom land we made twelve miles, and encamped at some old Indian huts, apparently a fishing place on the river.
Plaque inscription: NO. 706 WEBSTER'S (SUGAR LOAF HOUSE)-OVERLAND PONY EXPRESS ROUTE IN CALIFORNIA - This was the site of Webster's Sugar Loaf House, well-known stopping place during the Comstock rush. Beginning in April 1860, it was used as a remount station of the Central Overland Pony Express, and in 1861 it became a horse change station for pioneer stage companies and the Overland Mail.
Location: On Hwy 50 (P.M. 48. 0), 1.0 mi W of Kyburz
Google maps: 38.771099,-120.308726