1. Level of dye release

2. Hooper well Park office well Park picnic well Dalton well Woody well Gossi well Bruneau Plateau Malad Gorge Snake River landslide landslides L a n d s l I d e s Woody’s Cove GFF outcrop Pillow outcrop L a n d s l I d e s

3. Snake River to Malad Gorge Profile 3,379 Bruneau Plateau Elevation (ft. above M.S.L.) 2,657 2,723 2,789 2,854 2,920 2,986 3,051 3,117 3,182 3,248 3,314 3,281 2,690 2,756 2,822 2,887 2,953 3,018 3,084 3,150 3,215 3,346 2,426 Snake River Deer Gulch Basalt Basalt and regional aquifer Tuana Gravel fm. Glens Ferry Formation (GFF) Clay & silt Fault ? Basalt L. Woody well 361 ft. Park office well 410 ft. Park picnic well Hooper well Dalton well 280 ft. P. Gossi well 505 ft. Basalt Woody’s cove Malad Gorge Landslide sediments GFF Basalt Graben? Basalt? deep aquifer? water table Vertical offset ? approx. 50 ft. GFF B a s a l t valley fill Basalt sediments Fault or erosional feature?