The start of the Earth Story Trail. Credit: Cornwall Sea to Stars/A HewardThe start of the Earth Story Trail. Credit: Cornwall Sea to Stars/A HewardThe start of the Earth Story Trail. Credit: Cornwall Sea to Stars/A HewardThe Archean Eon is the second point in the Earth Story Trail. Credit: A Heward/Cornwall Sea to StarsThe Earth Story Trail signs for the Paleozoic Era, which has six geological periods, the Cambrian, the Ordovician, the Silurian , the Devonian, the Carboniferous and the Permian. Credit: Cornwall Sea to Stars / A HewardThe Earth Story Trail signs for the Mesozoic Era, which has three geological periods, the Triassic, the Jurassic and the Cretaceous. Credit: Cornwall Sea to Stars/A HewardLooking at rock samples that illustrate the Earth Story trail. Credit: A Heward/Cornwall Sea to StarsLooking at rock samples that illustrate the Earth Story trail. Credit: A Heward/Cornwall Sea to StarsEach sign in the Earth Story trail comes with a shelf that can be used to hold rock samples to illustrate the geology of the eon, era or geological period described. Credit: A Heward/Cornwall Sea to StarsMarking out the Earth Story Trail in Willow Field on Wednesday 19 July 2023. Credit: Cornwall Sea to Stars/A HewardMarking out the Earth Story Trail in Willow Field on Wednesday 19 July 2023. Credit: Cornwall Sea to Stars/A HewardMarking out the Earth Story Trail in Willow Field on Wednesday 19 July 2023. Credit: Cornwall Sea to Stars/A HewardMarking out the Earth Story Trail in Willow Field on Wednesday 19 July 2023. Credit: Cornwall Sea to Stars/A HewardMarking out the Earth Story Trail in Willow Field on Wednesday 19 July 2023. Credit: Cornwall Sea to Stars/A HewardThe Earth Story Trail starts with the Hadean Eon. Credit: A Heward/Cornwall Sea to StarsMarking out the Earth Story Trail in Willow Field on Wednesday 19 July 2023. Credit: Cornwall Sea to Stars/A HewardClint O’Connor, the mastermind behind the Earth Story Trail. Credit: A Heward/Cornwall Sea to StarsBrian Sheen at the Astronomy Hub at Truro High School for Girls. Credit: Cornwall Sea to Stars/A Heward