Map of Hill forts
Caer Alyn Hill Fort
We do not as yet know the full width and depth of the River Alyn in the prehistoric period, but if the river was navigable at that time, then the fort may well have been of strategic importance for monitoring traffic on the river, and may even have been used as a trading post.
Caer Drewyn was built around 2,500 years ago. Unlike other hillforts in the area Caer Drewyn doesn't have earthen banks or ditches (ramparts), but a large dry stone wall, the remains of which can still be seen today.
Moel y Gaer Llantysilio was built around 2,500 years ago in the Iron Age. It can be found between the peaks of Moel Morfydd and Moel Gamelin. The hillfort is surrounded by one bank and ditch and encloses an area of just one hectare.
Said to be the most impressive hillfort in north Wales, there are significant stone ramparts surrounding its entire circuit, and in places still standing to over 3m in height.