Wasn’t it Rexburg that was wiped off the map by the dam failure?
eyep..:
On June 5, 1976, Rexburg’s main street once again was filled with mudholes and sufficient water to drown a horse when the Teton Dam broke sending a deluge of floodgates down on the surrounding lowlands including Rexburg. It first began as a leak coming from the right abutment at 7:45 a.m. This weakened the interior of the dam and allowed the pressure of the water in the reservoir to erode the dam further. When the dam collapsed at 11:57 a.m. the reservoir washed out the northern part of the dam unleashing about 80 billion gallons of water, flooding about 300 sq. miles of the valley. Livestock, houses and debris of all sorts could be seen carried along by the flood water. Houses were torn from their foundations and carried right through town. Huge logs from the lumber company acted as battering rams and caused much damage before coming to rest alongside of damaged homes and businesses. Later when the water began to subside and people waded back to their homes and businesses, they found the damage to be almost overwhelming.