Ynotfsih
I was not questioning whether you can or even should carry a gun but rather pointing out that in terms of threats to you cougars and bears are not very high on the list.
For additional information refer to WDFW's web site. Included is informationon what to do if you encounter either animal.

http://www.wa.gov/wdfw/wlm/game/cougar/cougar.htm

http://www.wa.gov/wdfw/wlm/game/blkbear/blkbear.htm

There it is reported that In Wshington since 1924 there has been 1 fatal and 4 non-fatal cougar atttacks and for bears 1 fatal and 3 non-fatal.

Bottom line as we stand on the river with a graphite rod in hand we are more likely to be struck by the "proverbial bolt of lightning".

Tight lines
Smalma