rtillery played a crucial role in determining the outcome of the Battle of Gettysburg. Artillery units fought desperately side by side with their infantry counterparts during all three days of the battle and Union guns made up the difference during the July 3rd finale known as Pickett's Charge. Today, there are hundreds of cannon that line park avenues at locations where Union and Confederate batteries were established during the battle. Each position is marked by a tablet or monument with a compliment of cannon of the type used by that organization during the battle. Visitors are quick to note that the guns on both sides are very similar in design and made of bronze or iron. In fact, Confederate artillery units were not only armed with southern-made cannon, but a number of captured Union guns filled southern artillery organizations. http://www.factasy.com/civil_war/