Double Negative was created in 1969 by artist Michael Heizer, and consists of a trench dug into the earth.
[1] Among the terms of the agreement with the museum is the fact that, according to the artist's wishes, MoCA will undertake no conservation of the piece as Heizer indicated that nature should eventually reclaim the land through weather and erosion.
[2] Since then, Heizer has expressed a contrasting wish to restore the piece, perhaps in opposition to Robert Smithson's support for the principle of entropy.
For the large-scale, historical survey of land art “Ends of the Earth” at MoCA in 2012, Heizer did not want any representation of Double Negative to be included in the exhibition.
[4] A good aerial photograph appears in the catalogue, but Heizer reportedly worried that documentation in a museum gallery would misrepresent a sculpture that he felt could be known only through physical experience.