How much time do you spend time thinking about dirt? It’s all around us, it’s necessary for life in the present, but it also provides clues to the past. Join San Felipe de Austin staff archeologist Sarah Chesney as she talks about the role of dirt in understanding the past and why dirt is an archeologist’s best friend.How much time do you spend time thinking about dirt? It’s all around us, it’s necessary for life in the present, but it also provides clues to the past. Join San Felipe de Austin staff archeologist Sarah Chesney as she talks about the role of dirt in understanding the past and why dirt is an archeologist’s best friend.