Ok so I am hunting for some info, I fish a lot on the Kalama and have started to hunt there as well, I am quite familiar with the werehouser road up above the fly fishing only water and the werehouser road that you take a left too get on above the canyon area. I also know of the road that you can take up above mahaffey's but I am not sure what gmu's these are and I am planning on going up for muzzle loader in November, December and am wondering what is where and where is what, any info would be much appreciated. Thanks in advance.

Tried looking in the regulations pamphlet? Look on the GMU map and get an idea of which units you're in, then look at the boundary descriptions with a map to figure out the details.

Sounds like the Coweeman and areas south of this GMU, but a check of the regs would confirm.

WDFW has an interactive map feature that may help out. Here is the link
http://www.wdfw.wa.gov/mapping/gohunt/index.html

You can look at specific gmus and determine which one it is in.

Good Luck!

Thanks guy's I appreciate it.