Exit78 Photo of the Day #71
On Friday, October 28, 1983, Idaho’s Borah Peak was lifted about a foot by a 6.9 magnitude earthquake. The Lost River Valley floor dropped up to 7.5 feet in places with a 20-mile scarp, seen in the picture below along the base of the Lost River Range. Two elementary school students were killed in Challis.

Mt. Borah with part of October 28, 1983 earthquake scarp in foreground, Lost River Range, (photo – July 25, 2010, Pentax K10D)
From 1977 to 1980, we lived in Arco, Idaho, about 50 miles southeast of the spot where the photo was taken.
Series notes:
- The photos in this series are (usually) randomly selected from a batch of photos specifically “curated” for Exit78 Photo of the Day.
- Each photo in this series is an “original work” – a copyright term – of Michael Goad.