How to Geotag a Photo in the macOS Photos App

Geotagging allows you to add geographical identification metadata to various media such as a geotagged photograph or video, websites, SMS messages, QR Codes or RSS feeds and is a form of geospatial metadata. To geotag a picture in macOS Photos:

Open Photos.

Choose the photo you want to tag.

Select Info from the Window menu in the top, left-hand side of the Mac display.

Photo of baby in Photos with geotag information dialog box

Click Assign a Location in the Info panel that appears and start typing.

That’s all there is to it.