A community archaeology group have uncovered a massive wall dating back to the Iron Age in Perth.

The team have been investigating hill forts on Moncrieffe Hill for the past three years as part of a project to learn more about how the site was used.

The wall is 5m wide and stretches around the hilltop giving whoever occupied it a commanding position over the surrounding area.

It's thought the structure dates back to 200BC.

Many of the people working on the project are volunteers who have come from around the world to take part.

The area is open to the public but the dig is due to finish next week, and the sites will be filled back in.