This Peat Is Quite Ancient

Today we were doing John Muir, And again we scooted to the Easter Inch Moss. One of the activities that we did was one my favourite, Basically what we did was get a orange metal rod and stuck it into the ground. I know what you're probably thinking "bUt wHaTs tHe pOiNt iN dOiNg iT¿" well it's actually really simple, if you push the rod down it'll go further (OBVIOUSLY) but when its practically down in the ground you get another rod and you twist it on the one you have put in the ground. Okay enough of the rod i will now actually answer what you most likely asked. 1 rod = 1000 years because the rod is 1 meter, 1 meter = 1000 mm (Each mm counts as one year) Pretty easy maths isn't it? The only thing(s) that'll stop the rod going further is roots and rocks. If you lift up the rod you can see all the peat on the rod. All this basically says is that this peat Is quite ancient...