One after another reports continued to come of placers discovered here and there in the upper Rockies. Among all these, the strikes on Gold Creek proved to be the most extensive and valuable. A few Eastern men, almost by accident, had found fair "pay" there, and returned to that locality when they found themselves unable to get across the snow-covered mountains to Florence. These few men at the Gold Creek diggings got large additions from expeditions made up in Denver and bound for Florence, who also were unable to get across the Salmon River mountains. Yet others came out in the summer of 1862, by way of the upper plains and the Missouri river, so that the accident of the season, so to speak, turned aside the traffic intended to reach Florence into quite another region. This fact, as events proved, had much to do with the later fate of Henry Plummer and his associates.
These Eastern men were different from those who had been schooled in the mines of the Pacific Slope. They still clung to law and order; and they did not propose to be robbed. The first news of the strikes brought over the advance guard of the roughs who had been running the other camps; and, as soon as these were unmasked by acts of their own, the little advance guard of civilization shot one of them, Arnett, and hung two others, Jernigan and Spillman. This was the real beginning of a permanent vigilante force in Montana. It afforded perhaps the only known instance of a man being buried with a six-shooter in one hand and a hand of cards in the other. Arnett was killed in a game of cards, and died with his death grip thus fixed.
The new diggings did not at first prove themselves, and the camp at Bannack, on Grasshopper Creek, was more prosperous. Henry Plummer, therefore, elected Bannack as his headquarters. Others of the loosely connected banditti began to drop into Bannack from other districts, and Plummer was soon surrounded by his clan and kin in crime. George Ives, Bill Mitchell, Charlie Reeves, Cy Skinner, and others began operations on the same lines which had so distinguished them at the earlier diggings, west of the range. In a few weeks Bannack was as bad as Lewiston or Florence had ever been. In fact, it became so bad that the Vigilantes began to show their teeth, although they confined their sentences to banishment. The black sheep and the white began now to be segregated.