OregonOutdoor Discovery
Salem · natural area · 4.40 acres
Erratic Rock State Natural Site
4.5Google rating(233 reviews)
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At a glance
- Hours
Open for day use year round
- Amenities
Visitor amenities
…be in nature
- Hiking Trailsnature
- Vista Pointnature
…culture & learning
- Interpretiveculture
Accessibility
Structured attributes when known. Unknown stays blank — we never invent access.
- Wheelchair accessible
- Accessible entrance
Google category: State park Google service options: Wheelchair accessible entrance
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Suitability from published amenities — not invented by AI.
- Nature
- nature60
- seniors40
Park size map
Official park boundary from GIS.
On the ground
Trails
Overview
About this park
This 90-ton rock was deposited during an Ice Age flood. It floated over 500 miles in an iceberg 12,000 to 17,000 years ago, by way of the Columbia River.
When the ice melted, the rock was left behind. This is the largest glacial erratic found in the Willamette Valley.
It is a type of rock not normally found in Oregon because it came from the Northern Rocky Mountains.
Visitors at Erratic Rock can look out across the vast landscape and imagine the huge amount of water that filled the Willamette Valley during the Ice Age Floods.
Background
History & notes
Acquired by purchase from private owners in 1956.
Today
Weather
Forecast is advisory — confirm park hours before you go.
Plan your visit
Nearby
More parks in Salem
Data quality
Sources
Confidence checks: coordinates · website · image · hours · amenities (and last verified when known).
Confidence score
76/ 100
Oregon State Parks
- official website
- coordinates
- amenities
- hours
- image
- last verified
Confirm hours on the official page before visiting.