I've heard it said about California that it contains an example of every environment on Earth, from rainforests to deserts to the Mediterranean climate that makes Los Angeles stand apart from the deserts just over the mountains. Looking out from an aircraft is an excellent way to see this, and to see things that just couldn't be taken in at once from ground level.
Based on the flight path of my Los Angeles - Toronto flight, I believe this picture to have been taken somewhere over the San Gabriel Mountains, but I can't get any more specific than that. I think it stands fairly well on its own.
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