Hungry Horse and Mossyrock

• Creators of reservoirs
• Hydroelectric power projects
• Holds back
• River blockers
• Creek blockers
• Bureau of Reclamation projects
• Fish ladder settings
• Hoover and Boulder, e.g
• Steeplechasers' mothers

Wiktionary Word definitions in Wiktionary
n. (plural of dam English) vb. (en-third-person singular of: dam)