Retaining Wall. ; ZION Museum and Archives Image 002_02006 ; ZION 15933
Retaining Wall. ; ZION Museum and Archives Image 002_02007 ; ZION 15933
West portal of Zion Mt. Carmel Tunnel. ; ZION Museum and Archives Image 002_02003 ; ZION 15933
Civilian Conservation Corps (CCC) workers engaged in 'bank sloping' (hillside stabilization} along the Zion-Mt. Carmel highway below the tunnel. ; ZION Museum and Archives Image 002_02030 ; ZION 15933
Workers engaged in bank stabilization above the Zion Mt Carmel Highway. ; ZION Museum and Archives Image 002_02011 ; ZION 15933