Wave Rock

Natural rock formation · Hyden, Western Australia, Australia
Photo: SKY-PuLeun / Wikimedia Commons (CC BY-SA 4.0)
Wave Rock is a curved granite cliff on the north face of Hyden Rock in Western Australia's wheatbelt. Its shape resembles a breaking ocean wave, and Guinness lists it as the largest flared slope. Source Source Source Reported
Photographed Jan 2018. Evidence date: 2018-01-08. Source Reported
💡 4 things to know
- Weathered into a waveAustralian Museum describes weathering and water erosion; Guinness instead stresses acidic soil weathering. We lean toward the Museum geologist’s account and keep the different descriptions visible. Source Source Conflicting
- A world record slopeGuinness World Records lists Wave Rock as the largest flared slope, about 1,210–1,320 square metres exposed. Source Reported
- Streaks of colourWater running down the face left red, brown, yellow and grey stains of carbonates and iron hydroxide, per the Museum. Source Reported
- A wall on topA wall built in 1928 halfway up Hyden Rock funnels rainwater to a dam; it was renovated in 1951, says Wikipedia. Source Reported
📍 Where it is
North face of Hyden Rock, about 3 km east of Hyden · Hyden, Western Australia, Australia Source Reported
Map pin is approximate; use the named site or address to locate the formation.
🗓️ Sightings
- 20188 Jan
Photo taken
- 202521 Oct
Australian Museum page updated
Green stamps mark dated photographs; amber stamps mark records or reports; red stamps mark loss. Publication dates are not camera dates.
✅ The facts
- Height
- Museum: 15 m; Guinness: 11–12 m. We favor the Museum geologist’s account but retain both measurements. Source Source Conflicting
🔗 Related
All sources & image credits
Photo: SKY-PuLeun / Wikimedia Commons (CC BY-SA 4.0)
Last checked: 26 October 2026 · How we verify art