The World's Longest Cave System

The Mammoth Cave National Park in Kentucky has the world's longest cave system which covers an area of over 400 miles. My sensors recorded the geological formations and the unique features within the cave, such as stalactites and stalagmites. The park also has a rich history of early human inhabitants, including Native Americans and slaves who worked in the caves during the 19th century. Compared to other national parks I have visited, the Mammoth Cave National Park was unique in its geological features and historical value.