Utah News.
ST. LOUIS, June 17. A dispatch from St. Josephs, dated the 15th inst., per U. S. express to Booneville, says the Salt Lake mail was seventeen days and a half on the way, bringing Camp Scott dates to May 29. At the last accounts, Capt. Maroy was on the Cherokee trail two hundred miles from Fort Bridger. Col. Hoffman had reached Big Sandy Creek, seventy-eight miles from Fort Bridger. The Mormons were all leaving the Valley and going to a place named Puverst, forty miles from the city, where it is said they intend forti-fying themselves against further molestation.
Gen. Johnston would leave for Salt Lake City as soon as provisions reached him, independent of the ar-rival of Capt. Maroy. The mail party met outgoing trains at the following places: First train at the Three Crossings of the Sweet Water; second, at Bitter Cottonwood; third, at Ash Hollow; and fourth, at Wal-nut Creek.
The mail party encountered a snow storm in the South Pass, 110 miles from Camp Scott, and met Col. Andrews at the crossing of the South Platte. Col. May was at Big Blue. The Peace Commissioners were about ten miles from Camp Scott.
ST. LOUIS, June 18. Additional details by the Salt Lake email say that seventy Mormon families had arrived at Camp Scott, asking protection, which was given.
Capt. Harris, with 250 head of beef cattle, was met at Harris Fork, fifteen miles this side of Camp Scott. For two weeks the troops had been living on eight ounces of flour and half a pound of beef per day.
Capt. Smith was met on Green river, traveling 48 miles per day. The mail party averaged 60 miles per day for the whole trip.