article_snippet: There is no precise date for the structure, but Dr Heyd added the first of The stone structures might date back as early as the Bronze Age.
article_snippet: Although the more complex formations are likely 'younger and could have been constructed until the Medieval period.'
article_snippet: He continued that the first of The stone structures might date back as early as the Bronze Age.
article_snippet: This could make them up to 4,500 years old.
article_snippet: Although the more complex formations are likely 'younger and could have been constructed until the Medieval period.'
article_snippet: Dating is also said to be problematic, but there is often material in or around the circles that originated in the Chalcolithic and Early Bronze Age (between 2,000 to 4,500BC).