Complex sentence: From the Iron Age are the remains of several hill forts, which can be found around the summits of both East and West Lomond as well as at Maiden Castle, a grassy knoll that lies between the two.
Split into simpler sentences: From the Iron Age, there are the remains of several hill forts. These can be found around the summits of both East and West Lomond as well as at Maiden Castle, a grassy knoll which lies between the two.