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Fill dirt (also called cleanfill, or just fill) is earthy material which is used to fill in a depression or hole in the ground or create mounds or otherwise artificially change the grade or elevation of real property. [1]
Some of the mounds are 3 m (10 ft) tall and 10 m (33 ft) wide, and they are spaced about 20 m (66 ft) apart. Underneath the mounds are networks of tunnels that required the excavation of 10 cubic kilometres (2.4 cu mi) of dirt. Scientists performed radioactive dating on 11 mounds. The youngest mound was 690 years old.
A modern view of a medieval pillow mound at Stoke Poges, England. The most characteristic structure of the "cony-garth" ("rabbit-yard") [1] is the pillow mound.These were "pillow-like", oblong mounds with flat tops, frequently described as being "cigar-shaped", and sometimes arranged like the letter E or into more extensive, interconnected rows.
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A closeup of a shell midden in Santa Cruz Province, Argentina.. A midden [a] is an old dump for domestic waste. [1] It may consist of animal bones, human excrement, botanical material, mollusc shells, potsherds, lithics (especially debitage), and other artifacts and ecofacts associated with past human occupation.
A homeowner who fed neighborhood raccoons for decades called 911 after coming home to find more than 100 of the fuzzy masked invaders "demanding food" and preventing her from getting inside.
A tree throw or tree hole is a bowl-shaped cavity or depression created in the subsoil by a tree. They are formed either by the long-term presence and growth of tree roots or when a large tree is blown over (as a windthrow ) or has its stump pulled out which tears out a quantity of soil along with the roots.