what oregon river is this, I think its up smith river near 2 mile marker is that correct or wrong?

I can’t confirm that from the text alone, but it sounds more likely wrong than right. In Oregon, there are multiple Smith Rivers, and the two most commonly referenced ones are the Smith River tributary of the McKenzie River in Linn County and the Smith River tributary of the Umpqua River in Douglas County.

What the clue suggests

“Up Smith River near 2 mile marker” sounds like a local road or river-mile reference, which usually needs a map pin, nearby bridge, or photo context to identify correctly. Without that, I can only say it does not uniquely point to one Oregon river.

Best guess

If someone said “up Smith River” in Oregon, the Umpqua tributary is the more common Smith River people mean in southwest Oregon, while the McKenzie tributary is in a different part of the state. So your guess could be plausible, but it is not something I’d call confirmed from this info alone.

What would verify it

A river crossing name, nearby campground, road number, or GPS pin would narrow it down fast. If you share the image or exact nearby landmark text, I can help judge whether it matches the Smith River near the 2-mile marker or a different Oregon river.