Upon hearing the news of rich silver deposits miners, traders, charcoal burners and vagabonds quickly poured into this, at that time, inhospitable area.
You'll also find frankincense, produced in the south of the country, which you can buy with little ceramic burners: the best (and most expensive) is silvery-white; the cheapest, yellowy-brown.
Commercial griddles are often required to have pilot protection (also known as flame safety) to prevent the unregulated flow of gas if the griddle pilot burners are somehow extinguished.