GPS wasn’t novel but GIS was less common and especially so for the open source side of things. I think that conversation makes sense if you read the first part

GPS wasn’t novel but GIS was less common and especially so for the open source side of things. I think that conversation makes sense if you read the first part not as “get the latitude and longitude where the photo was taken” but as “determine whether those coordinates fall within a polygon in the NPS set” where it’s not very hard but does require a little bit of work if you don’t already have an existing GIS setup.