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.
Keywords from Image Description:
Chain Bridge over Chesapeake and Ohio Canal. en Chain Bridge crossing the Canal Note that this part of the canal was George Washington's Patowmack Canal Little Falls Skirting Canal repurposed for the Note the pair of mallard ducks guarding their egg which the female unfortunately laid on the towpath and it is raining in this photograph