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:
mountains clouds sky blue nature field meadow plain far landscape rock peak travel hill range park forest summit sun top hiking mountain top scenery valley sunlight outdoor adventure natural summer high morning scenic mountain landscape horizon nature landscape
Page 2017 Free-images.com. All images are Public Domain