Hi Glenn. I hope I'm not to late to get in on this " yosemite green " conversation. My Merc is Yosemite green also and one of these days I'll need to paint it. I contacted a fellow on ebay that had a Mercury up for bid ( June of '06 ) He said he got his green through " Sharpley's Garage in Cambellford, Ont.( 705-653-3773 )
He also thought Mac Auto Parts in NY sold it too. Not sure if this is helpfull to you or not. I'm planning to colour match the green on the ashtray cover from my truck but haven't got arround to it.
Got my truck in '06 ? Were has the time gone !! I better go and get back to work on it.
Greg M-47