 Prince George Citizen, 14 Jun 1968 In this environment, two tugboat companies and about 25 private logging contractors conducted one of the largest timber salvage operations in North America.
<coherence>  Prince George Citizen, 14 Jun 1968 In this environment, two tugboat companies and about 25 private logging contractors conducted one of the largest timber salvage operations in North America.
 In this environment, two tugboat companies and about 25 private logging contractors conducted one of the largest timber salvage operations in North America.