This image was acquired from
flickr. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
animals seasons monochrome Photographer Reuben R. Sallows Description Series of wolf tracks imprinted in snow deepest imprint in centre foreground prints decrease in size as they extend vertically to centre top title written in pen across bottom Sallows imprint in lower right corner of matte Object ID rrsogohcph View additional