A Super-Simple Tool to Search Instagram by Time and Location
Posted: 5/8/2013  |  By: Al Shaw | ProPublica

The Instagram site has no search function, so finding shots like this can take a lot of digging. However, Instagram has an API with a "Media Search" endpoint that returns data both by timeframe and distance from a certain latitude and longitude -- a perfect way to see who's at a certain place at a certain time.