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:
glacier national park glaciernationalpark nps montana nature many glacier manyglacier outdoors national parks nationalparks summer outdoor plant tree landscape forest NPS Jacob W. Frank NPS Jacob W. Frank
Page 2017 Free-images.com. All images are Public Domain