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:
Beautiful landscape of green swamp with calm waters. Check categories October en br Image title Beautiful landscape of green swamp with calm waters Image from Public domain images website publicdomainimage html publicdomainimage Gentry George Fish and Wildlife Service Not given Transferred by on This file is in public domain
Page 2017 Free-images.com. All images are Public Domain