Don't visit Antietam without Antietam 150. This iPhone and iPad app will help you plan your trip and guide you to all the important sites you want to see. There are 100 sites to choose from and the app will guide you directly to them with your iPhone's GPS technology. Once there, you can learn more about the events that occurred in the exact spot you are standing. You can also record your own battlefield locations and submit them to Antietam150.com for possible inclusion in future versions of the app. Make your Antietam visit come alive with the convenience of the iPhone app or the large maps of the iPad app.

* Plan your trip in advance with the large detailed maps in the iPad version.

* Use your iPhone to discover the actual locations of the significant events.

* Walk in the steps of Abraham Lincoln, Robert E. Lee, Stonewall Jackson, Fighting Joe Hooker, James Longstreet, George McClellan, Ambrose Burnside, A.P. Hill and many others.

* Become an amateur historian by creating and submitting your own sites with the app's innovative "Add" feature.

* The free app comes with the 11 locations at the Visitor Center (Auto Stop 1). You can easily unlock all 100 locations with a modest contribution of $2.99. Your contribution will enable us to enhance this app and your Antietam experience.