There are a couple tools that will extrapolate your location from a bunch of location sources and apply it, to, for example, images and videos that don't have direct GPS metadata. The only tool I've used is https://exiftool.org/geotag.html

(I'm a huge fan of ExifTool: I wrote both the ruby and node wrappers for it!)

FWIW I will be adding this location extrapolation to PhotoStructure at some point soon, as all my dSLR images don't have GPS tags.