While on the Vedder a few years ago, I caught this fish pictured below:
I carefully inspected the fish and found it to be a red spring as well.
If you are unsure (and careful) you can lift the gillplate carefully and look at the color of the flesh just in front of the Pectoral fin. It will look red if it is a red spring. If you are worried about lifting the gillplate, you can look at the flesh of the fish just behind the anal fin. In the battle to get up river, this area often wears first and the flesh will look reddish.
At that time, I choose to let it go.
Although I do not post very often, I am replying because upon having a discussion with an oldtimer, he informed me that the fish I caught was one of the original wild springs from a way back in this system. He informed me that many people think the reds in the Chehalis and Vedder in July are the "original" wild Springs, but this is not the case. Before hatcheries and enhancement (and introduction of the whites), the Vedder used to have a small run of reds which would come in during the month of October and spawn in November. I mention this because the fish are very few and far between, but in more recent years, seem to be making a comeback, which is nice to see.
I choose to let mine go in hopes it would find some others and spawn, bringing more and more reds back to the river in the fall. This seems to be the case, as in the last two outings out there, I have seen two other reds caught in the past two weeks. Both were colored up and after some chatting, the individuals were convinced to let them go.
Please do not assume I am being overbearing. I am just encouraging individuals who may be lucky enough to catch a red spring to consider letting it go to bring future stocks up.
On the other hand, the tale I heard about the reds could just be a tale and I could be completely wrong. If anyone knows for sure, it would be nice to have a definite answer.
Congratulations on a beautiful fish there, Dennis. Also, if you look closely at mine, you can tell I clearly flossed it with the blade, seeing the hook appears to be on the outside of the mouth and all...
Dano