Is Root River catch and release?

Hello everyone, I am new to the forum and new to fishing in Wisconsin. A friend and I were looking at coming up to the Root River in Racine county in March to try to catch some steelhead (and hopefully take a couple home). I am looking at the regs for trout and I'm seeing the early trout season is catch and release only on trout streams. I just want to make sure that I am understanding this properly that the Root River is a lake Michigan tributary (and not a trout stream) to the Horlick Dam, and it is exempt from the early season.

If anyone could help that'd be swell, just don't want to get a big ticket up there. 

Thanks in advance! 

1. you need a great lakes trout stamp and a WI license

2.  You can keep up to 5 trout (browns/bows)...lakers have their own regs, but ts very rare to find them running the root...I have only seen it a couple times.

3.  Size limit is 10"

Now wonder this sight is so slow.

You are good to keep them to the first dam on the root, make sure you have a Lake Michigan stamp though not inland, good luck!