Show air view shows the progress on boulder dant dam 12 ltv v z 0 ewt z M BA 1 el 1 41 41 i NS 1 1 1 i 4 i M f W P s S 4 evv 1 Z nim a T X V w ve r A al IKA ell y arf a tel ff 7 VA BS S r C w V P i vav ante i I 1 2 tey kuna it i g s i te a 7 20 r M i t 4 Z v aflfe r ay iy s h ws r fa i i y w 8 H y X 11 VA t etow ai to alk 1 I 1 4 mayl Mf kik INS remarkable air view of the ayra naw T THIS fo 0 con construction st ruction of boulder dam shows V the work on the dam itself in the amla foreground and in the background la Is seen we the nevada spillway fei tail t ail r A J w hoba i |