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:
Gfpmichiganupperpeninsulathelakebehindrocks. en Free Public Domain Stock Photos of the Upper Peninsula The UP in Michigan with its shorelines parks and wilderness areas bit of Lake Superior showing behind rock outcropping good www good good gallery good php image good Yinan Chen ccpd Images from good Import by User Slickobot
Page 2017 Free-images.com. All images are Public Domain