Google Maps iframe link

Hi,
I′m using the Google Maps field for users to place a location pin and would like to obtain a direct link to the iframe of the map generated, with that pin (like a “view full map” link). I need to load the map inside an modal or a popup in the archive page, where all my posts show, so each one has its own button to “view full map” and opens its own modal, but I was only able to make this work when viewing the single post, not in archive page.
Is this possible?
Thanks