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State Park

Photo: Gary Halvorson, Oregon State ArchivesCC BY 4.0Wikimedia Commons

Erratic Rock State Natural Site

Oregon · OR

1

Trails

Official sources & verification

Managed by Oregon Parks & Recreation Department

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Source of truth

We display cached information from agency feeds. Hours, fees, permits, closures, fire restrictions, and conditions change without notice. Outdoors is not the permitting authority. Confirm current conditions for this park using the links above before you go — you are responsible for compliance. Last verified by us: Oct 14, 2026. Spot an error in our data?

About

A small site with a huge boulder carried here by an Ice Age flood, the largest glacial erratic in the Willamette Valley. Wide valley views.

Source: stateparks.oregon.gov

From Wikipedia

Erratic Rock State Natural Site is a state park in the Willamette Valley of Oregon, United States. Featuring a 40-short-ton (36 t) glacial erratic from the Missoula Floods, the small park sits atop a foothill of the Northern Oregon Coast Range in Yamhill County between Sheridan and McMinnville off Oregon Route 18. The day-use-only park is owned and maintained by the Oregon Parks and Recreation Department.

Source: Wikipedia — text licensed CC BY-SA 4.0. Verify alerts and operational details with the managing agency below.

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Hunting in this park

This park overlaps hunting units

During hunting seasons, wear blaze orange and check regulations — see the Oregon hunting page

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