earthwork
engineering work created through the moving or processing of parts of the earth's surface
cut
where soil or rock material from a hill or mountain is cut out to make way for a canal, road or railway line
hill-slope enclosure
type of prehistoric earthwork
Fort Hill State Memorial
Native American earthwork in Ohio
Cedar-Bank Works
Adena culture earthworks located in Ross County, Ohio
Trench shoring
Process for preventing the collapse of trenches
Spiral Jetty
earthwork sculpture by Robert Smithson in Box Elder County, Utah, United States