Thanks for your response.  I ended up creating an activity in Target which would set an element attribute with the latitude and longitude, then had some JS make an Ajax call to our Bing API to get the approximate location.

I would like to set a Launch Data Element based on a value saved in local storage, is this possible?If yes, could you point me in the right direction or provide some pointers?If I can set the Data Element, then it would be used to define an Audience. Thanks in advance, Walter

If a user has location access turned off in their browser, how can I leverage Target geolocation as a fallback to get their city, country or zipcode? Thanks, Walter