Conversation so far:
where was the spiral jetty created before it disappeared due to erosion
Robert Smithson chose the Rozel Point site for the Spiral Jetty at Great Salt Lake, Utah.
The Spiral Jetty is still visible at Great Salt Lake?
In the early 2000s sustained drought in Utah caused water levels to recede, and Spiral Jetty became visible for the first prolonged period in its history.
How is the preservation of the Spiral Jetty handled?
The Dia Art Foundation states visitors are prohibited from removing rocks from the artwork or from stepping on vegetation that is on the grounds of the artwork.
Was there a movie about the Spiral Jetty?
Robert Smithson documented the construction of the sculpture in a 32-minute color film also titled Spiral Jetty.

Question: can you tell me about the foundation connected to the sculpture
Self-contained rewrite: what is the foundation related to the spiral jetty