National Geographic : 1960 Mar
ERNST PETERSON, COURTESYMONTANAPOWERCOMPANY© NATIONALGEOGRAPHICSOCIETY Before the Slide: A Fisherman Wades the Madison Where a Dam Now Lies Blanketed by trees, the canyon wall rose to an elevation of 7,600 feet. This entire sec tion thundered down, damming the river and burying part of Rock Creek Campground, on the near side. Herbert Hoover often has fished the Madison, a famous trout stream. After the Slide: A bulldozer crosses the spillway carved across the barrier's crest, 200 feet above the old riverbed where the fisherman (above) casts for trout. Earth movers often foundered in the rapids. One truck tumbled down the spillway, but the 342 driver escaped serious injury. Pulverized rock scars the denuded slope.