Natural Color Aerial Photography (NCAP)- Aerial photographs for the continental United States that range from 2005-present day. Typically these photographs are within one to two meter resolution (one pixel on the image represents one or two meters on the ground).
High Resolution Color Aerial Photography- Aerial photographs for the continental United States (typically urban areas) that range from 2003-present day. These photographs are usually one foot to 6 inch resolution (one pixel on the image represents one foot or 6 inches on the ground).
Historic Aerial Photography- Digital Data Services, Inc. offers millions of high-resolution, historic aerial photographs for the entire United States dating back to the late 1930’s.