This pump formerly sat on its concrete base. At the time of the earthquake, water and sand were forced up the casing and played against the base of the pump gradually raising it some 8 inched above its former position. Gallatin County, Montana. The Hebgen fault scarp where it crosses the crest of Bost Mountain neart Hebgen Dam.
Man stands on down-thrown block of ground.
Gallatin County, Montana. Hebgen Lake area. Gallatin County, Montana. July 6, 1984. View of one wall of the spillway.