Who took this photo?

This humble hill is located in Sonoma, just across the hill from Napa, a famous wine town in California. Like most of the surrounding land, this hill is now covered with vines, but in the early 1990s, this place was infected by a vine-eating pest (phylloxera), so all vines had to be pulled out and the land was left fallow for several years.

This hill is located beside the12/12/expressway (two names of the same expressway), which is the only way for photographer Charles O'Rear to go home every day. One morning in January, the grass on the ground had just been watered by a month's rain, and it looked delicate and green. There were some irregular cumulus clouds in the newly cleared sky. This scene and the photographer's ability made Charles stop by the side of the road, take out his medium-sized camera and take a picture that tens of millions or even hundreds of millions of people have seen, regardless of the traffic on the road.