This essay examines homicide data (1,317 cases) collected from newspapers, coroners' inquests, and criminal court records in San Diego, Santa Barbara, San Luis Obispo, Sacramento, San Joaquin, Calaveras, and Tuolumne counties, which were selected because of regional and ethnic variation. The gold rush enticed thousands of young males who spent their leisure hours drinking and gambling in mining camps. Factors such as the boomtown effect and the critical convergence of young men, guns, alcohol, and minor grievances came together to create "enclaves of violence" in these gold camps, in Chinatowns, and in San Diego Indian lands. With the exception of Chinatowns, these enclaves lacked a sense of community. Consequently, they created the image of a violent society and re�ect the reality that parts of California, at certain times and places, were indeed violent.