Robert Morris Earthwork, Land art installation in SeaTac, United States.
The Robert Morris Earthwork features terraced circles carved into a former gravel pit, covering 3.7 acres of transformed industrial land.
King County Arts Commission selected this location from 100 gravel pits in 1979 to create the first permanent land reclamation sculpture in the United States.
The design draws inspiration from Peruvian amphitheaters, incorporating descending terraces that encourage visitors to reflect on industrial land use.
Located at 21630 37th Place South in SeaTac, Washington, the site maintains rye grass coverage and remains open for public visits.
A row of blackened tree stumps stands at the edge of the terraced landscape, marking the connection between environmental damage and artistic restoration.
Location: Washington
Inception: 1979
Creator: Robert Morris
GPS coordinates: 47.40750,-122.28361
Latest update: October 16, 2025 23:50
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