Thanks for your reply, Nik.
Shortly after I posted my question I found the GPS information I was looking for in Apple Photos. If one displays a single picture in Photos, then scrolls to the bottom of the screen to display the location information, there is a much larger map with the location pin and an approximate address. The address was not shown in the small “Get info” window for the image. It was this information that I saw in the Nitro EXIF information.
Ed