Can you build items that need a terrain type when every tile of that type has been flipped back or covered?

Question

Accepted Answer

No. A flipped tile, or one whose terrain symbol is covered, does not supply the material needed, and a terrain covered by a black cube counts as unexplored for building.

Robinson Crusoe: Adventures on the Cursed Island

Can you build items that need a terrain type when every tile of that type has been flipped back or covered?