Willamette River Rock in Oregon
Also sold as River Rock
Also known as: round rock, bar run rock
On wet Oregon ground, Willamette River Rock gives drainage details and planted areas a finished, rounded surface.
- Size: 1 inch to 3 inches
- Type: Smooth, naturally rounded stones
- Color: Tans, grays, browns and occasional reds
From $791.00 for 1 ton, delivery included
Larger loads cost less per ton: 500 tons is $60,015.00 ($120.03 per ton). Pick any quantity below for a delivered price.
Free delivery included
Free delivery anywhere in Oregon
Pick a delivery date
Weekday delivery, earliest Sep 25
“Our daycare outside Sutherlin wanted a decorative border along the play yard fence that wouldn't wash out every winter. Two tons of river rock went in over fabric and it has stayed put through a full rainy season with zero maintenance. Parents and staff both like how it looks compared to the bark we had before, and the kids leave it alone since it's too heavy to scoop up easily.”
Miguel R. · Verified Buyer
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Everything You Need to Know About Willamette River Rock
Size and Grading
- Size
- 1 inch to 3 inches
- Type
- Smooth, naturally rounded stones
- Color
- Tans, grays, browns and occasional reds
A common mistake is putting Willamette River Rock under work that will never be seen. Its rounded, water-worn look is best reserved for a landscape surface, such as planted ground or a visible runoff channel. The blend of earth tones sits comfortably beside a garden or water feature. Unlike organic mulch, the stone does not break down over time, so it can remain in place as a low-maintenance ground cover.
In the Willamette Valley, winter saturation can leave clay wet for long stretches, while ground east of the Cascades is drier and subject to frost. Use this material as the finished layer after the drainage path and underlying ground work are planned. That approach keeps the decorative stone in view instead of asking it to correct poor grading or a missing route for runoff during wet weather.
Quickly Calculate How Much You Need
Material: Willamette River Rock
How to Measure
Measure the length and width of your project area in feet
Decide on depth in inches (2" for landscaping, 4" for driveways)
Enter the values above and we'll calculate the tonnage you need
Need help figuring out the right amount? We can help!
Call or text us at our contact form and we'll help you calculate the right quantity for your project.
Not sure how much you need? The River Rock Calculator has depth guides, coverage charts and worked examples for this material.
Common Uses
Garden & Landscape Uses
Use river rock to define flower beds, cover open ground, or create a focal area in the yard. It works around trees, beside fences, and in place of natural mulch when you want added texture and contrast.
Drainage Uses
Water moves readily through rounded river rock. For French drains through winter clay, dry creek channels, downspout runs, and similar drainage work, it can guide runoff away from foundations and low areas while helping limit erosion.
Ponds and Water Features
Use river rock to shape the edges of ponds, surround fountain bases, or finish waterfall settings. The rounded stones and earthy color variation give water areas a look that feels at home in the landscape.
Decorative Touches
Define walkways, add texture to rock gardens, or cover xeriscape spaces with river rock. It also works alongside pavers, stepping stones, and native plantings to tie an outdoor space together.
Why Choose Willamette River Rock
River Rock Over Time
Organic mulches break down and may lose color, while river rock stays intact. Once placed, it can remain in your landscape for decades without regular replacement.
Simple Upkeep
Wood mulch commonly needs a new layer each year. River rock asks for little care, and a garden-hose rinse from time to time helps clear its surface.
Natural Option
River rock contains no chemical dyes or preservatives to leach into the soil. Water can pass through it, making it useful for drainage and for xeriscape layouts that use less water.
Visual Appeal
Natural color changes and a rounded, smooth surface give river rock a lasting look. It fits contemporary and traditional landscapes and can improve the appearance from the street.
Frequently Asked Questions About Willamette River Rock
Customer Reviews
Dry creek bed turned out beautiful
We finally built the dry creek bed we'd talked about for years in our backyard near Cove in Union County, where a low spot used to collect runoff every spring and turn into a soggy mess. Ordered four tons of river rock along with some larger accent stones and laid it over fabric in a curving path toward the fence line. Oregon Rock Supply's driver dropped the rock right at the top of the yard so we didn't have to haul it down the slope. It has handled two runoff seasons now, moving the water where we wanted instead of letting it pool.
Stan W. · Cove, OR · Verified Buyer
Beautiful border for the play yard fence line
Our daycare outside Sutherlin wanted a decorative border along the play yard fence that wouldn't wash out every winter. Two tons of river rock went in over fabric and it has stayed put through a full rainy season with zero maintenance. Parents and staff both like how it looks compared to the bark we had before, and the kids leave it alone since it's too heavy to scoop up easily.
Miguel R. · Sutherlin, OR · Verified Buyer
Foundation bed looks sharp around the house
Redid the foundation beds around our place outside Mosier with river rock instead of the mulch that kept blowing away in the Gorge wind. Used about two tons spread over fabric along three sides of the house. Looks clean and hasn't scattered even in some strong gusts this spring. Only nitpick is a handful of stones came through duller in color than the sample piece we were shown.
Yvonne D. · Mosier, OR · Verified Buyer
Splash area looks great under the downspout
Needed something to stop erosion under our downspout at the new place near Dufur. Half a ton of river rock spread over fabric solved it in an hour. Looks clean and no more mud splashing on the siding.
Glenn P. · Dufur, OR · Verified Buyer
Willamette River Rock has 4 verified customer reviews with an average rating of 4.8 out of 5.


