The geographic point within a site where a measurement or activity takes place. The location sequence number, that identifies the location within the site. The name that describes the location within the site. A textual description of the location. The code identifying type of cross-section used to identify the location. The distance into the cross-section identifying the position of the location within the cross-section. The default units are feet. The code identifying type of elevation used to identify the location. The distance of elevation identifying the position of the location within the cross-section. The default units are feet. A Data Descriptor residing at this location.