Welcome to Oregon, and to our forum.
FYI if you purchase just 2 daily licenses (with no endorsements, tags, etc)...you may as well buy an annual license. As the cost is a wash.
And if you wish to fish ANY tributary of the Columbia drainage system...then you will also need, that endorsement. You can't legally fish any such stream (creek, or river) without one. For Salmon, Steelhead, or Sturgeon. Which includes all of the Willamette system to the south; and and pretty much all northeastern streams. See page 8, of the reg book, for details.
BTW...I mostly fish for trout; and have loved every minute of having a Two-Rod Validation stamp! This is primarily only legal for lakes, ponds, and reservoirs. But NOT in some coastal lakes--during Coho Salmon season. Bank fishing, still fishing from a boat, or trolling, with 2 rods is a blast. And if you go ice fishing...you can have up to 5 rods.
Hope that this helps.
Good luck and tight lines,
TD
P.S.
rogerdodger is 6-month residency required, in order to obtain an Oregon license? I can't find anything in the reg book.
jxl013 Get yourself a copy of either of these books. You will learn a lot, and quickly too:
"Fishing in Oregon" 11th Edition, by Maddy Diness Sheehan (Flying Pencil Pulications)
"Complete Angler's Guide to Oregon" 2nd Edition (unless they have now released a newer edition) (Wilderness Adventure Press, Inc.)