It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
This image was acquired from
Keywords from Image Description:
dawn tomorrow sunset shadows red black landscape clouds awakening horizon nature sky day output sun sunrise landscape stillness orange sun alba light backlight tree climate rays autumn calm shading the light of the sun atmosphere summer zen abstract wallpapers reflection
Page 2017 Free-images.com. All images are Public Domain