With Apple Photos Mac app you cannot copy the exact location from one photo to other photos (good old iPhoto could). Attached 2 AppleScripts to copy and paste the geo information. To have it handy: 1. Activate the script menu from Script Editor preferences. 2. Switch to Photos app and click Open Photos Script Folder from the script menu. 3. Move the downloaded scripts in this folder and it will be available from the script menu in Photos.
https://www.dropbox.com/sh/9duqjk3j7e5cqkb/AABRarYkxjiuQBA7_DNaXVwEa?dl=0
https://www.dropbox.com/sh/9duqjk3j7e5cqkb/AABRarYkxjiuQBA7_DNaXVwEa?dl=0