Up ravines and over hills miners and merchants, soldiers and seamen scrambled throughout the area. By the summer of 48, more than a thousand men were working the ground at the new camp, which soon placed Coloma as the initial rendezvous for the Argonauts. But not all the newcomers were interested in gathering their share of the plentiful wealth by such back-breaking labor. Murders and robberies became frequent in isolated camps along the AmericanRiver, and before long, several merchants and miners had lost their gold at knife point.