Fishing is free in Oregon the first weekend in June on Saturday and Sunday, June 4-5. Everyone can fish, clam and crab for free in Oregon those two days.
No fishing/shellfish licenses or tags (including a Combined Angling Tag or Columbia River Basin Endorsement or Two-Rod Validation) are required those two days for either Oregon residents or nonresidents. It’s also free to park and camp at Oregon State Parks on Saturday, June 4.
All other fishing regulations apply including closures, bag limits and size restrictions. See the Oregon Sport Fishing Regulations for rules and remember to check for any in season regulation changes, especially for salmon and steelhead fishing, at https://myodfw.com/recreation-report/fishing-report/