The examples of sluicing above have the sluiced material following its antecedent. During the 1850s, miners sluiced streams and rivers including Secret Ravine which runs through Rocklin. Tailings from this process were then treated in a Chilean Mill and sluiced. A dump was made that could be sluiced during the summer. The amount of soil sluiced away in this way seems incredible. The gravel was sluiced the next summer.