Replacing maps with Module map

Hello,

i want to edit the location of a map thats previously installed onto a my site,
public_html/catalog/view/theme/default/template/information/contact.tpl

i noticed this as a reference to the map that's on the page,

<a href="https://maps.google.com/maps?q=<?php echo urlencode($geocode); ?>&hl=en&t=m&z=15" target="_blank" class="btn btn-info"><i class="fa fa-map-marker"></i> <?php echo $button_map; ?></a>

but im unsure of how to go about replacing old for new, is there a simple geolocation edit ?
im alittle rocky on my php but would this $geocode be what im looking for or am i overcomplicating everything?

Thank's in advance