There are 11 charcoal kiln sites in the Frisco Mining District, see others on this page.
There are 3 charcoal kilns at the Cactus Mine in the Frisco Mining District.
One located at N 38.49088 W 113.29861 is in good condition.
Another located at N 38.48591 W 113.29313 is in ruins.
And another located at N 38.48519 W 113.29226 is in ruins.