It looks like the trees are illuminated by lights form a visitors center or parking lot. They are illuminated form a low angle up so it might be the same lights as the heads. It looks like a time laps photo to me. I took some time laps photos of a city and did not notice they were night until I looked closely at the lights and the windows.
and the other thing I mentioned about polaris not lining up could be because the sky is more like a dome...and the picture is flat....but if you draw a line along the outer edge of the big dipper it should line up with polaris which is the last star in the handle of the little dipper and it doesn't. but like I said it could be the 3 dimensionality compared with 2 dimensions.