🇺🇸 United States · Hydraulic works
Grand Coulee Dam
The Grand Coulee Dam is a concrete gravity dam on the Columbia River in the U.S. state of Washington, built to produce hydroelectric power and provide irrigation water.
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🇺🇸 United States · Mound
Ely Mound
Mississippian culture
Ely Mound is a historic burial mound located near Rose Hill, Lee County, Virginia. It is considered the best-preserved Mississippian culture site in Virginia.
🇺🇸 United States · Hydraulic works
Grant's Canal
Grant's Canal (also known as Williams's Canal) was an incomplete military effort to construct a canal through De Soto Point in Louisiana, across the Mississippi River from Vicksburg, Mississippi.
🇺🇸 United States · Archaeological wonder
Blue Hill Meteorological Observatory
The Blue Hill Meteorological Observatory in Milton, Massachusetts is the foremost structure associated with the history of weather observations in the United States.
🇺🇸 United States · Hydraulic works
Duluth Ship Canal
The Duluth Ship Canal is an artificial canal cut through Minnesota Point, providing direct access to Duluth harbor from Lake Superior.
🇺🇸 United States · Ancient city
Isunigu
Isunigu (also called Seneca, Esseneca, and Sinica) was a Cherokee town on the Keowee River. It was on the west side of the Keowee River, near the mouth of Coneross Creek, in today's Oconee County,…
🇺🇸 United States · Earthwork
Center for American Archeology
The Center for American Archeology, or CAA, is an independent non-profit 501(c)(3) research and education institution located in Kampsville, Illinois, USA, near the Illinois River.
🇺🇸 United States · Hydraulic works
Bonneville Dam
Bonneville Lock and Dam consists of several run-of-the-river dam structures that together complete a span of the Columbia River between the U.S. states of Oregon and Washington at River Mile 146.1.
🇺🇸 United States · Hydraulic works
Illinois and Michigan Canal
The Illinois and Michigan Canal connected the Great Lakes to the Mississippi River. In Illinois, it ran 96 miles (154 km) from the Chicago River in Bridgeport, Chicago, to the Illinois River at…
🇺🇸 United States · Archaeological wonder
Hopkinton Dam and Spillway
The Hopkinton Dam and Spillway is a historic site at the eastern end of Hopkinton Reservoir in Hopkinton State Park in Ashland, Massachusetts.
🇺🇸 United States · Ancient village
Canyon de Chelly National Monument
Canyon de Chelly National Monument ( də-SHAY) was established on April 1, 1931, as a unit of the National Park Service.
🇺🇸 United States · Hydraulic works
Edwards Dam
Edwards Dam was a hydroelectric dam on the Kennebec River in the U.S. state of Maine. It was located in Augusta, Maine, about 40 miles (64 km) upstream from the Atlantic Ocean.
🇺🇸 United States · Tell
Pueblo del Arroyo (Chaco Great House Arroyo Sector)
Pueblo II–III (Chacoan 900–1150 CE, McElmo phase) · Ancestral Puebloan (Chaco Canyon Chacoan)
Pueblo del Arroyo (Chaco Great House Arroyo Sector) is a multi-period tell/ancient village in New Mexico, San Juan County, Chaco Canyon, Chaco Culture National Historical Park, United States —…
🇺🇸 United States · Hydraulic works
Franklin Canal (Texas)
The Franklin Canal is an irrigation canal in the Upper Rio Grande Valley near El Paso, Texas. The canal acquires water from the Rio Grande via the American Canal.
🇺🇸 United States · Ancient village
Walnut Canyon National Monument
Sinagua (c.1100–1250 CE) Northern Sinagua – Cohonina transition · Northern Sinagua
Walnut Canyon National Monument preserves 300+ Northern Sinagua cliff dwellings (c.1100–1250 CE) set in shallow alcoves under the Kaibab Limestone rim of a 122m-deep canyon 12 km east of Flagstaff,…
🇺🇸 United States · Necropolis
Colma, California
Colma (Ohlone for 'springs') is a small incorporated town in San Mateo County, California, United States, on the San Francisco Peninsula in the San Francisco Bay Area.
🇺🇸 United States · Rock art
White Shaman Panel — Lower Pecos
Middle to Late Archaic (3000–2000 BCE) · Lower Pecos hunter-foragers (related to Coahuiltecan)
Texas Lower Pecos 7.6-m shaman-antlered polychrome 3000–2000 BCE, Pecos style type.
🇺🇸 United States · Ancient village
Ozette Indian Village
Late Pacific Northwest (1500–1750 CE, buried c.1700) · Makah (Nuu-chah-nulth)
Ozette Indian Village in Washington, United States is a Late Pacific Northwest (1500–1750 CE, buried c.1700) ancient village attributed to Makah (Nuu-chah-nulth) culture.
🇺🇸 United States · Archaeological wonder
Folsom Site
Folsom Paleo-Indian (10,800 – 10,200 BCE) · Folsom Paleo-Indian
Folsom Site in New Mexico, United States is a Folsom Paleo-Indian (10,800 – 10,200 BCE) archaeological wonder attributed to Folsom Paleo-Indian culture.
🇺🇸 United States · Cave
Lovelock Cave
Lovelock Culture (2500 BCE – 1830 CE) · Lovelock / Paiute-Shoshone
Lovelock Cave in Nevada, United States is a Lovelock Culture (2500 BCE – 1830 CE) cave attributed to Lovelock / Paiute-Shoshone culture.
🇺🇸 United States · Ancient village
Topper Site
Pre-Clovis (Topper) to Clovis · Pre-Clovis (Topper)/Clovis
Pre-Clovis chert quarry (15,000 BCE) with debated lower horizon below Clovis on Savannah River, South Carolina.
🇺🇸 United States · Hydraulic works
Holtwood Dam
Holtwood Dam (also Holtwood Hydroelectric Dam, Holtwood Hydroelectric Plant, McCalls Ferry Dam) is the oldest of three major dams built across the lower Susquehanna River, and the middle location of…
🇺🇸 United States · Ancient village
Casamero Pueblo
Pueblo II Chacoan (1000–1150 CE) · Pueblo II Chacoan (1000–1150 CE)
Casamero Pueblo in New Mexico, McKinley County, Rio Puerco, near Prewitt, United States is a Pueblo II Chacoan (1000–1150 CE) settlement attributed to Pueblo II Chacoan (1000–1150 CE) culture.
🇺🇸 United States · Rock art
Newspaper Rock Petroglyphs
Basketmaker to Historic Ute (500 BCE – 1850 CE) · Basketmaker-Anasazi (Ancestral Pueblo), Fremont, Navajo, Ute
Utah Wingate cliff 650 figures 500 BCE–19th c. palimpsest from Basketmaker to Ute.