In physical geography and geology, a horst is the raised fault block bounded by normal faults or graben. A horst is a raised block of the Earth's crust that has lifted, or has remained stationary, while the land on either side has subsided. Horst is Dutch and German for heap.

Answer this question: the mountain which is known as horst is? Let's give stream of consciousness first:
The important part for answering this question is: A horst is a raised block of the Earth's crust that has lifted, or has remained stationary, while the land on either side has subsided.
So, the final answer is a raised block of the Earth 's crust that has lifted , or has remained stationary , while the land on either side has subsided.