save the Geographic info in SharePoint List.
1)Create a SharePoint hosted app and open up the Start page , here before executing actual CSOM
following few lines , get the context of hostweb url , app Web url and loads the sp.js
2)Now with the help of CSOM ,create SP list with GeoLocation column added to it.
3)Once this app is deployed successfully then you will see , List with name Custom List with Geolocation locumn added to it in host site