With the GPS Shield you can add GPS functionality to your Arduino. A connector for the popular EM-406 GPS receiver is populated on the board, and footprints for EM-408 and EB-85A connectors are also made available (connectors are not soldered on or included and can be found below in the related items). The regular GPS pins (RX, TX, PPS, etc.) are also broken out to a 10-pin 0.1″ pitch header, and a small protoyping area is also provided.

Arduino Sparkfun GPS Shield Pinouts