I spent the last summer visiting and documenting an earthwork which was the subject of the Doorway.
http://mitpress2.mit.edu/e-journals/Leonardo/isast/wow/wow303/doorway.html
Using Google earth I realized that Earthworks were not only viable in a distributed medium, but they may be reborn.
What would Smithson have Done had he had access to the GPS technology.
What a wonderful set of dreams this elicits.
best,
Eric Dymond
http://www.edymond.com/The_Doorway.kmz
good day t'ya