Where is this place? I have been seeing this photo (XP desktop background) for years now and I always wondered about this place. Can anyone identify it?

Where is this place? I have been seeing this photo (XP desktop background) for years now and I always wondered about this place. Can anyone identify it?

Oddly, in the Dutch and Portuguese versions of XP it was called "Ireland", when the shot was actually taken in North America. Known as Bliss, it's from Sonoma County, California, USA.
The location on Google maps - 38.250124,-122.410817.
Amazingly, it was taken as part of a photographic work on the subject of wine making in the area. It now has a vineyard on the hill, and looks completely different:
(Source - Wikimedia commons)
For further information on it, and why some people used to think it was in Switzerland, the Wikipedia article is very enlightening.
Bliss is a hill in Sonoma County, Calfornia, the shot was taken by Charles O’Rear.