Oregon Dairy Farm in Lancaster County, Pa.
Young planted trees line a stream running through Oregon Dairy Farm in Lititz, Pa., on May 1, 2015. Oregon Dairy Farm, which composts food waste and cow manure, utilizes cover crops, and powers the entire farm with a methane digester, was named as a 2015 U.S. Dairy Sustainability Award winner. (Photo by Will Parson/Chesapeake Bay Program)