They came up to a steel trestle that held the ancient penstock above an open gorge.
He moved up the steel trestle by the ice climbing area designated The Schoolroom.
About a mile distant there was a trestle spanning a deep gorge.
As the train rumbled by, the trestle shook and swayed until I thought we should be dashed to the chasm below.
We would have taken any way rather than this; but it was late and growing dark, and the trestle was a short cut home.