Many diseases and conditions are spread by not washing hands with soap and clean, running water. If clean, running water is not accessible, as is common in many parts of the world, use soap and available water.
Riverdale covers about three square miles in area. It has one of the highest elevations in New York City, affording it views of the Empire State Building, George Washington Bridge, Hudson River and New Jersey Palisades.
Riverdale is the name (or former name) of two places in the State of Maryland in the United States of America: 1  Riverdale, Anne Arundel County, Maryland. 2  Riverdale, Prince George's County, Maryland, now Riverdale Park, Maryland.