Official Source: Dia Spiral Jetty
source confidence: High status: Useful updated 2026-06-18
Summary
Dia Art Foundation's collection record describes Robert Smithson's Spiral Jetty as a 1970 site-specific sculpture at Rozel Point on the northeastern shore of Great Salt Lake.
Useful Claims
- Spiral Jetty is a Robert Smithson work from 1970 located at Great Salt Lake, Utah.
- Dia describes the work as made from black basalt rocks, salt crystals, earth, and water.
- The collection record gives the scale as a roughly 1,500-foot-long coil about 15 feet wide.
- Dia links the work's meaning to Great Salt Lake's fractured rocky landscape, changing water levels, and Smithson's interest in entropy.
- Dia states that it stewards the work and conducts recurring aerial documentation; it also notes that photo and video material is copyright protected.
Verbatim
"Robert Smithson's Spiral Jetty (1970) is a site-specific sculpture that is located at Rozel Point on the northeastern shore of the Great Salt Lake." — Collection record, Overview
"Made of black basalt rocks, salt crystals, earth, and water, Spiral Jetty is a 1,500-foot-long coil, measuring approximately 15 feet wide, that stretches into the lake." — Collection record, Overview
"As stewards of Spiral Jetty , Dia is committed to recording changes to the work over time through photographic documentation." — Collection record, Aerial Documentation
"Photographic and video material of Spiral Jetty is copyright protected." — Collection record, Rights and Reproductions
Reliability Notes
This is the steward's official collection record and is high-confidence evidence for basic artwork facts, materials, dimensions, location, and rights cautions. It should be paired with conservation sources and Utah access guidance for current visitation and lake-condition claims.