This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Hungry Horse Dam . Hungry Horse Dam on Montana's Flathead River helped to pave the way for using fly ash in concrete Completed in the dam was built with metric tons of fly ash It is one of the largest concretearch dams in the nation See also nist gov cfm www nist gov cfm Credit Bureau of Reclamation Disclaimer Any mention of