Wooton Wood Mill?

I've seen these concrete forms in several places throughout the forest and I believe they are the foundations for saw mill machinery, although I cannot be sure as I've had little luck finding documentation on such sites. What I do know is that the forest timber was heavily used during both world wars; during the first as shuttering for trench works and pit props and in the second mainly as pit props, as warfare had changed and trenches less common, whereas industrialization had increased the need for coal. There are plenty of surrounding earthen features which require further investigation when the surrounding ferns have died back. The forest if full of hidden history.