Erratic Rock State Natural Site

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Last Updated: December 5, 2025

Erratic Rock State Natural Site is a geological wonder located in the state of Oregon.


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Summary

It is situated in the Willamette Valley and is known for its unique rock formations. There are plenty of reasons to visit this natural site, including experiencing the beauty of the rocks and the stunning views of the surrounding landscape.

One of the best points of interest at Erratic Rock State Natural Site is the erratic rock itself. This is a large boulder that was transported to the site by a glacier over 10,000 years ago. The rock is estimated to weigh over 90 tons and is a fascinating sight to see.

Another attraction at the site is the hiking trail. The trail is about 0.6 miles long and offers breathtaking views of the valley. Visitors can also explore the nearby forest area and enjoy the peaceful surroundings.

Interesting facts about Erratic Rock State Natural Site include that it is one of the few places in Oregon where you can see a glacial erratic. The site is also home to a diverse range of flora and fauna, including several species of birds and native plants.

The best time of year to visit Erratic Rock State Natural Site is in the spring and summer months when the weather is mild and the flowers are in bloom. The site is open year-round, but visitors should be prepared for colder temperatures in the fall and winter.

Overall, Erratic Rock State Natural Site is a must-see for anyone visiting Oregon. Its unique geological formations, stunning views, and peaceful surroundings make it an unforgettable experience for nature lovers and hikers alike.

       

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Park & Land Designation Reference

National Park
Large protected natural areas managed by the federal government to preserve significant landscapes, ecosystems, and cultural resources; recreation is allowed but conservation is the priority.
State Park
Public natural or recreational areas managed by a state government, typically smaller than national parks and focused on regional natural features, recreation, and education.
Local Park
Community-level parks managed by cities or counties, emphasizing recreation, playgrounds, sports, and green space close to populated areas.
Wilderness Area
The highest level of land protection in the U.S.; designated areas where nature is left essentially untouched, with no roads, structures, or motorized access permitted.
National Recreation Area
Areas set aside primarily for outdoor recreation (boating, hiking, fishing), often around reservoirs, rivers, or scenic landscapes; may allow more development.
National Conservation Area (BLM)
BLM-managed areas with special ecological, cultural, or scientific value; more protection than typical BLM land but less strict than Wilderness Areas.
State Forest
State-managed forests focused on habitat, watershed, recreation, and sustainable timber harvest.
National Forest
Federally managed lands focused on multiple use—recreation, wildlife habitat, watershed protection, and resource extraction (like timber)—unlike the stricter protections of national parks.
Wilderness
A protected area set aside to conserve specific resources—such as wildlife, habitats, or scientific features—with regulations varying widely depending on the managing agency and purpose.
Bureau of Land Management (BLM) Land
Vast federal lands managed for mixed use—recreation, grazing, mining, conservation—with fewer restrictions than national parks or forests.
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