The Bureau of Mines recently surveyed more than 35 dragline operations and selected the 25 most productive machines. Each site was observed, and the manager was asked what factors had led to the operation's high productivity. The most frequent response was the attention paid to the details of the dragline operation. This meant continually seeking ways to maintain or to improve the performance of this machine. From this study, several trends were noticed that may account for the superior performance of these operations. They included innovative bucket designs, effective use of support equipment, improved blasting techniques, and good management-labor relations.