Park

Erratic Rock State Natural Site park

Oregon, USA Willamette watershed 45.140°, -123.295°
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Erratic Rock State Natural Site -- Oregon park
Erratic Rock State Natural Site Oregon · Willamette watershed
About this park

Erratic Rock State Natural Site

Erratic Rock State Natural Site is a geological wonder located in the state of Oregon. 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.
StateOregon
WatershedWillamette
Latitude45.1402°
Longitude-123.2948°
Land designation

Park & land designation reference

A quick legend for the federal and state land categories Snoflo tracks. Each designation comes with different rules around access, recreation, and resource extraction.

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 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.
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.
Detailed forecast

Plan your visit down to the hour

Same weather feed Snoflo's iOS app uses -- updated continuously from NOAA / yr.no.

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

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Deep dive

5-day forecast table

Every 3 hours, broken out across temperature, snow, rain, humidity, and wind.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
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Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks.

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Stay nearby

Area campgrounds

Snoflo-tracked campgrounds within reach of Erratic Rock State Natural Site, with reservations status.

Campground Reservations Toilets View
Hiker/Biker Camp
Beaver Island Group Camp
Fan Creek Campground
Dovre Campground
Elk Bend Campground
Alder Glen Campground
Around the spot

Plan a longer trip

The closest parks, lakes, fishing spots, and POIs so a park visit can grow into a full weekend.

Responsible recreation & Leave No Trace

Know before you go
Check the operator's site for hours, permit requirements, seasonal closures, and fire restrictions before heading out.
Stay on trail
Stick to marked paths to protect vegetation, prevent erosion, and avoid disturbing wildlife habitat.
Respect wildlife
Observe from a distance, never feed wildlife, and store food securely if camping is permitted on-site.
Pack it in, pack it out
Carry out all trash, food scraps, and gear. Many parks have limited or no trash service.
Leave what you find
Don't take rocks, plants, or artifacts. They make the park what it is for the next visitor.

Set push alerts in the Snoflo app

Save Erratic Rock State Natural Site as a favorite, set a custom threshold (precipitation, freezing temperatures, fire-restriction days), and the iOS app will push the moment conditions cross.

FAQ

About Erratic Rock State Natural Site

What can I do at Erratic Rock State Natural Site?

Most Snoflo-tracked parks support hiking, picnicking, and wildlife viewing. Check the operator's site for activity-specific rules (camping, fishing, paddling, hunting).

How fresh is the weather data?

The hourly forecast updates throughout the day from NOAA / yr.no. Streamflow comes live from USGS streamgauges.

When is the best time to visit?

Use the 15-day temperature & precipitation outlook on this page to plan -- pick a window with comfortable temperatures and low precipitation.

How do I get to Erratic Rock State Natural Site?

Tap Directions in the hero above to open driving directions in Google Maps, or Open in map to center the Snoflo interactive map on the park.

Can I get alerts when conditions change?

Yes -- alerts are managed in the Snoflo iOS app. Favorite this park, set a threshold (temperature, precipitation), and you'll get a push the moment it crosses.

More parks

Other parks near here

Snoflo-tracked parks within driving distance of Erratic Rock State Natural Site.