Ballincollig Gunpowder mills is a heritage site rich with culture and history. Fascinating ruins and can be seen all through the park but how much do you really know about the buildings that you pass by everyday. The Powdermills app offers an immersive and engaging glimpse into the origins of the mills. Navigate through the park using our interactive map to uncover the history of the site. Use the app to learn more about each building. See how they appeared over a hundred years ago. Learn their stories and the part they played in Irish history. Powdermills - Bridging the past and the future.