Bureau of Reclamation

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Alchesay Canyon Bridge (Maricopa County, Arizona)
Concrete arch bridge over Alchesay Canyon on AZ 88
Arrowrock Dam (Boise County, Idaho)
Belle Fourche Dam (Butte County, South Dakota)
Boca Dam (Nevada County, California)
Buffalo Bill Dam (Park County, Wyoming)
Carson River Diversion Dam (Churchill County, Nevada)
Colter's Hell (Park County, Wyoming)
Derby Diversion Dam (Storey County, Nevada)
Ditchrider House (Butte County, South Dakota)
Diversion Dam and Deer Flat Embankments (Unspecified county, Idaho)
Elephant Butte Dam (Sierra County, New Mexico)
Elephant Butte Irrigation District (Dona Ana County, New Mexico)
Franklin Canal (El Paso County, Texas)
Grand Valley Diversion Dam (Mesa County, Colorado)
Guernsey Lake Park (Platte County, Wyoming)
Gunnison Tunnel (Montrose County, Colorado)
Hayden Arch Bridge (Park County, Wyoming)
Heart Mountain Relocation Center (Park County, Wyoming)
Lahontan Dam and Power Station (Churchill County, Nevada)
Lake Tahoe Dam (Placer County, California)
Leavenworth National Fish Hatchery (Chelan County, Washington)
Minidoka Dam and Power Plant (Minidoka County, Idaho)
Mountain Quarries Bridge (Placer County, California)
Newton Reservoir (Cache County, Utah)
Okanogan Project: Conconully Resevoir Dam (Okanogan County, Washington)
Pathfinder Dam (Natrona County, Wyoming)
Percha Diversion Dam (Sierra County, New Mexico)
Simmons Ranch (Duchesne County, Utah)
Winter House (Sheridan County, North Dakota)