The Centre for Archaeological Fieldwork at Queen's University Belfast has been excavating Carrickfergus Castle in County Antrim, uncovering aspects of its 19th century military use. They have traced the length of an ordnance munitions tunnel where supplies were offloaded from ships and taken into the castle for storage. So far they have found narrow-gauge railway tracks and a turntable used to move materials. The excavations are also revealing artifacts from earlier periods of the castle's occupation buried in the compacted soil. An open day provided photos and a tour for visitors to learn about the excavation work.