stored in Exif, the coordinates are represented as a series of rational numbers in the GPS sub-IFD. Here is a hexadecimal dump of the relevant section of the Exif metadata (with big-endian byte order): + [GPS directory with 5 entries] | 0) GPSVersionID = 2 2 0 0 | - Tag 0x0000 (4 bytes, int8u[4]): | dump: 02 02 00 00 | 1) GPSLatitudeRef = N | - Tag 0x0001 (2 bytes, string[2]): | dump: 4e 00 [ASCII "N\0"] | 2) GPSLatitude = 57 38 56.83 (57/1 38/1 5683/100) | - Tag 0x0002 (24 bytes, rational64u[3]): | dump: 00 00 00 39 00 00 00 01 00 00 00 26 00 00 00 01 | dump: 00 00 16 33 00 00 00 64 | 3) GPSLongitudeRef = W | - Tag 0x0003 (2 bytes, string[2]): | dump: 57 00 [ASCII "W\0"] | 4) GPS Longitude = 10 24 26.79 (10/1 24/1 2679/100) | - Tag 0x0004 (24 bytes, rational64u[3]): | dump: 00 00 00 0a 00 00 00 01 00 00 00 18 00 00 00 01 | dump: 00 00 0a 77 00 00 00 64 See also Geotagging Point of Interest GPS tracking Geocoding Geocoding on Commons List of cameras which provide geotagging References External links Assigning Textual Names to Sets of Geographic Coordinates (pdf) Open source photo kml generator for Google Earth Digital photography GIS file formats Metadata Geographic data and information