Original sentence: At this point the highway proceeds across flat desert towards the Book Cliffs to terminate at Interstate 70 near Cisco.Near the east end of the valley the highway crosses Onion Creek, a steam sourced by springs that contain naturally occurring minerals that produce a strong odor in the stream
Edited sentence: At this point the highway proceeds across desert towards the Book Cliffs to terminate at Interstate 70 near Cisco.Near the east end of the valley the highway crosses Onion Creek, a steam sourced by springs that contain naturally occurring minerals that produce a strong odor in the water