Help FoundSF geotag its historical image archive! FoundSF is a non-profit located in San Francisco, California, dedicated to preserving local history and providing residents with the means to add their own personal historical knowledge. This app is connected to the image archive of FoundSF, and lets you start exploring the images of any district you choose. If you recognize where an image was shot, or can tell by the description of the image, select the "Geotag This!" button on that photo to view a map, from where you can pinpoint the photo's location and send that data back to the FoundSF database. If you want to compete with others over who can geotag the most, you can choose a username, and even keep track of who are the top 10 geotaggers of the moment.