This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Samuel J. Guernsey and Theodore B. Pitman plaque Fisher Museum Harvard Forest DSC. en Plaque in Fisher Museum Harvard Forest Petersham Massachusetts USA Photography was permitted without restriction own Daderot cczero Plaques in Fisher Museum Harvard Forest Uploaded with
Page 2023 Free-images.com. All images are Public Domain