It's a grass mulch in my back yard next to a swimming pool.. I do the cooking in a Weber or ceramic tray if I am doing coals on the bottom. Sometimes I only put coals on the top to finish the recipe as in these images. I do not recommend using a Dutch Oven in high fire conditions that include low humity and high winds. Sorry if these images portrayed that as OK.
"All journeys have secret destinations of which the traveler is unaware." Martin Buber