What do you do with sheep dung?

So what do you do with sheep dung?  If you are a Navajo you sell it to the Hopi pottery makers who use it to fire their pots in.  Now that is a good use of a material and gets rid of it also.  So it that good environmental practices?  I hope to speak to the woman and ask her how long the Navajo have been selling their dung.  I just keep hearing more and more little stories connected to sheep.  The sheep keep weeds down under solar panels and wind mills, and in vineyards (the sheep will eat the grapes if the grapes hang too close to the sheep), and it has been known for years their use to reduce undergrowth in our forest reducing the potential of forest fires.  Let’s hear it for the sheep.