Yellowstone River Rock in Montana
Also sold as River Rock
Also known as: river rock, round rock
Yellowstone River Rock gives Montana planting areas and drainage details a smooth, rounded finish with varied earth-tone color.
- Size: 1 inch to 3 inches
- Type: Smooth, naturally rounded stones
- Color: Tans, grays, browns and occasional reds
From $793 for 1 ton, delivery included
Larger loads cost less per ton: 500 tons is $61,015 ($122.03 per ton). Pick any quantity below for a delivered price.
Free delivery included
Free delivery anywhere in Montana
Pick a delivery date
Weekday delivery, earliest Oct 15
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Everything You Need to Know About Yellowstone River Rock
Size and Grading
- Size
- 1 inch to 3 inches
- Type
- Smooth, naturally rounded stones
- Color
- Tans, grays, browns and occasional reds
East of the divide, Montana gumbo can stay slick after moisture and then harden as it dries. Valley ground farther west may drain more freely, but deep frost still makes grade and the groundwork beneath a finished landscape area important. Yellowstone River Rock belongs at the surface, where its naturally rounded, water-worn appearance can be seen.
Use this stone for planted borders, water-feature margins, or a managed drainage detail rather than a compacted base. The rounded form leaves it loose instead of locking together like crushed material. Its earth-tone mix can sit comfortably against soil, plantings, and hardscape. Where runoff crosses the property, establish the drainage route first, then place Yellowstone River Rock as the visible finish along that route to help cover soil exposed to runoff. That placement also keeps the rounded stone where routine landscape care can reach it.
Quickly Calculate How Much You Need
Material: Yellowstone 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 (406) 626-8957 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
Landscaping & Garden Design
Set off planting beds, garden edges, and feature areas with river rock. Place it at tree bases, beside fencing, or in place of natural mulch to bring varied texture and color to the yard.
Drainage Solutions
Because the stones are rounded, water can move freely through river rock. It works well in French drain runs, dry washes, downspout outlets, and similar drainage work, helping manage erosion and move runoff away from foundations and low areas.
Water Features & Ponds
Use river rock to finish pond edges, waterfall areas, and fountain bases. Its worn-smooth faces and earth-toned colors give water features a natural appearance.
Decorative Accents
Use river rock to define walk edges, fill rock gardens, or finish xeriscape spaces with a clean look. Native plants, pavers, and stepping stones can be arranged alongside it for a unified yard design.
Why Choose Yellowstone River Rock
Durability
Unlike organic mulch, river rock does not rot away or lose its color as it sits in the landscape. It remains a lasting ground cover and generally does not require replacement for decades.
Low Maintenance
Wood mulch usually needs to be added again each year, while river rock can stay in place with little attention. A garden-hose rinse now and then washes off dust and refreshes its appearance.
Eco-Friendly
River rock is a natural material without added dyes or preservatives that could enter the soil. Water can pass between the stones, making it useful for drainage and lower-water xeriscape layouts.
Aesthetic Appeal
River rock brings smooth shapes and naturally mixed colors to a landscape. Its look suits contemporary and traditional settings alike while giving the property a more finished appearance.
