Caer Drewyn Hillfort, Corwen

Caer Drewyn is a substantial Iron Age hillfort occupying a prominent hilltop approximately 1 mile east of Corwen. The site preserves clear evidence of multiple earth ramparts and an internal plateau that would have served as a defended settlement, likely dating to the later Iron Age (roughly 1st century BC to 1st century AD). The name Caer Drewyn translates as 'Drewyn's fort' in Welsh. The hillfort commands views across the Dee Valley and towards Snowdonia, and its position at a crossing point of the River Dee would have given strategic importance during the Iron Age.

Today the site is accessible via footpaths and open access land. The earthworks remain quite distinct and can be traced on the ground, though there are no standing structures or interpretive panels. The walk to and around the fort takes roughly an hour, and the main appeal lies in the landscape, the defensive earthworks themselves, and the panoramic views rather than any artefacts or built heritage. It's best treated as a countryside walk with archaeological interest rather than a formal visitor attraction, and it's rewarding if you have interest in prehistoric settlement patterns and landscape archaeology. The approach is fairly easy and suitable for families, though the final climb to the summit can be muddy.