Hoover Dam takes shape from the concrete columns in which it was poured (shot from cableway control tower downstream on Nevada rim, so looking upstream)
{{Information |Description=Hoover Dam takes shape from the concrete columns in which it was poured (shot from cableway control tower downstream on Nevada rim, so looking upstream) |Source=http://www.usbr.gov/lc/region/g5000/photolab/gallery_detail.cfm?PIC
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