Discover the Hydrology and Minerals of Castleton This is a moderately easy walk of 5 miles, to look at some of the caves and mines of the Castleton area. We will consider Hydrology – where water goes underground into the caves, and ask why, and where does the water go? What is Hydrology, and how does this relate to cave flooding? What are the minerals mined in this area? How did they get there? How did the old miners extract them in the 18th and 19th centuries? We shall study “primary school geology”. What!!? Who teaches geology at primary school? We will follow a route which takes in several cave and mine sites, and see where the water sinks and finally emerges. What do you need? Walking boots, waterproof top & bottoms, warm clothing, perhaps a rucksack with an extra layer, drink, snack, or something to carry your waterproofs in if we have a nice day – it is early March! Your leader is Dave Baines who is definitely not a geologist! He is an expert on mines and cave flooding and runs cave and mine leader training courses for the British Caving Association.