# Official Source: Dia Spiral Jetty

**Type:** source
**Status:** Useful
**Confidence:** High
**Source Type:** Official Collection Record
**URL:** https://diaart.org/collection/collection/smithson-robert-spiral-jetty-1970-1999-014/
**Publisher:** Dia Art Foundation
**Accessed:** 2026-06-18
**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.

## 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.

## Related Pages

- [Spiral Jetty](spiral-jetty.md)