A raised elongated block of the earth’s crust lying between two faults.These faults bound horsts, grabens and tilted blocks....
The area is characterized by a series of low-relief Jurassic horsts and graben.
The main effect of the orogeny in southeastern Utah was to uplift the Uncompahgre High, a horst composed of Precambrian strata, which is bound on its southwestern flank by a major reverse fault.