earth structure
building or other structure made largely from soil
dam from granular material
elongated artifical raised structure of earth or gravel serving a purpose such as carrying a thoroughfare (rail or road), holding back water, defense, obstructing sight, protecting from noise, or other
pit
natural or artificial depression in the ground
earth-fill dam
dam constructed as a simple embankment of well compacted earth
mud building
building made mainly of mud or clay