The term
horst is a
German word meaning "
Eyrie", or,
The nest of a bird of prey or other large bird that builds in a lofty place; aerie.1 A horst is the
geological opposite of a
graben, which lies between horsts. Alternating horsts and grabens are part of a
basin and
range system.
Schematic of a horst:
_________
/ \
/ /|\ \
________________/ | \_________________
| / | \ |
| / | \ |
| / | \ |
| / | \ |
| / \ |
|_________/_________________________\__________|
(1) Webby: Eyrie