| California |
| Boise Cascade | Anderson |
| Crown Zellerbach | Antioch |
| Crown Zellerbach | Samoa |
| Fibreboard Paper Products | Stockton |
| Georgia-Pacific | Samoa |
| Simpson Paper | Anderson |
| Simpson Paper | Eureka |
| |
| Idaho |
| Potlatch | Kamiah |
| Potlatch Paper | Lewiston |
| |
| Montana |
| Stone Corporation | Missoula |
| |
| Oregon |
| American Can | Halsey |
| Boise Cascade | Salem |
| Boise Cascade | St. Helens |
| Crown Zellerbach | West Linn |
| Crown Zellerbach | Wuana |
| Fibreboard Paper Mill | Antioch |
| Georgia-Pacific | Coos Bay |
| Georgia-Pacific | Toledo |
| International Paper | Gardiner |
| International Paper | Vaughn |
| James River Corp. | Halsey |
| James River Corp. | West Linn |
| James River Corp. | Wuana |
| Menasha Paper | North Bend |
| Pope & Talbot | Halsey |
| Publishers Paper | Oregon City |
| Smurfit | Newberg |
| Smurfit | Oregon City |
| Western Kraft | Albany |
| Weyerhaeuser | Coos Bay |
| Weyerhaeuser | Klamath Falls |
| Weyerhaeuser | Springfield |
| Willamette Industries | Albany |
| |
| Washington |
| B.T.R. Paper Group | Kelso |
| Bay View Plywood | Bay View |
| Boise Cascade | Steilacoom |
| Boise Cascade | Vancouver |
| Boise Cascade | Wallula |
| Boise Cascade | Yakima |
| Crown Zellerbach | Camas |
| Crown Zellerbach | Omak |
| Crown Zellerbach | Port Angeles |
| Crown Zellerbach | Tacoma |
| Crown Zellerbach | Twisp |
| Daishowa America | Port Angeles |
| Georgia-Pacific | Bellingham |
| Georgia-Pacific | Olympia |
| Georgia-Pacific | Spokane |
| Georgia-Pacific | Vancouver |
| Grays Harbor Paper | Hoquiam |
| Inland Empire Paper | Spokane |
| International Paper (sawmill) | Longview |
| ITT Rayonier | Hoquiam |
| ITT Rayonier | Port Angeles |
| ITT Rayonier | Shelton |
| James River Corp. | Camas |
| James River Corp. | Omak |
| Longview Fibre | Longview |
| Longview Fibre | Yakima |
| Morton Forest Products | Morton |
| Plum Creek Manufacturing | Colville |
| Port Townsend Paper Corp. | Port Townsend |
| R&W Paper | Longview |
| Scott Paper | Everett |
| Simpson Tacoma Kraft | Tacoma |
| St. Regis Paper | Tacoma |
| Weyerhaeuser | Cosmopolis |
| Weyerhaeuser | Everett |
| Weyerhaeuser | Longview |
| |
