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:
grinnell glacier grinnellglacier usgs science glaciers climate change climatechange climate gnp national park nationalpark outdoor landscape piste mountain Glacier Walk stunning view of researchers at the USGS survey are traversing Grinnell Glacier in Glacier National Park. The researchers are assessing how much glacier retreat or
Page 2017 Free-images.com. All images are Public Domain