When you're done fishing at Putah Creek, please make sure you spray down all of your gear. Putah has New Zealand Mud Snails...

There's a guide that's worked with a club I belong to in the Bay Area....he works the Merced/Yosemite area. You can pick up some info from his web site even if you're not looking for a good guide. You can find his web site at http://www.sierraflyfisher.com/

When you're driving out to Yosemite, if you go about ten miles or so out of your way, you can drop into the Motherlode Fly Shop in Sonora. That will get you local info (they're maybe 35 miles from the entrance to Yosemite. http://www.motherlodefly.com/

Enjoy your trip and don't forget to pick up a California fishing license...even Yosemite requires it these days. If you need info on picking one up, just holler and a link will be posted.