Felderham's Folly is the greenest valley in the Butcherblock Mountains, and it holds a quarry in its middle. However, it has been overrun by hostile elementals and rock golems. It is named after the creator of the elementals, Hamish Felderham - a dwarven conjuror who was working on procuring elementals to work in the quarry. However, the elementals he summoned promptly slew all the dwarves working at the quarry, and now the area bears the name Felderham's Folly.
Hamish Felderham waits at the mouth of the quarry, awaiting for adventurers to help him set right what his magic went wrong.