Swedish to English Tech/Engineering Mining & Minerals / Gems

hello

This is not the sentence I'm translating but is better for a question as it gives the definition

Stora ***stöten*** kallas det jättelika hål som bildades när delar av Falu koppargruva rasade samman 25 juni 1687. Orsaken till raset var den intensiva brytningen och planlösa drivningen av orter.

for a picture, see: https://sv.wikipedia.org/wiki/Stora_Stöten

So it's caused by massive subsidence and it leaves a bloody big hole or quarry like thing in the landscape

it's a .......???

Thanks