River Rock

River rock is a naturally tumbled, smooth-edged stone used for dry creek beds, drainage features, and decorative ground cover. Commonly installed for water features, garden borders, swales, and erosion control areas, river rocks manage runoff, suppress weeds, and create a soft, organic look. Earth Stone Rock supplies bulk river rock in a wide range of natural colors and sizes, available for yard pickup or delivery anywhere in the United States.

Buying river rock: for sale by the bag, the ton, or the cubic yard. Figure about 75 sq ft per ton at 2 inches for 1 to 3 inch stone. Size it with the coverage calculator, or read how much river rock do I need.

Trusted by contractors across California Decorative river rock in every size Bulk delivery or yard pickup
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Need help choosing? Browse project ideas, see size and use guidance, or read our buying guide.

Common Uses for River Rock

From dry creek beds to drainage layers β€” see where smooth, rounded stone earns its place in a landscape.

Dry Creek Beds

Dry Creek Beds

Layer mixed-size river rock (3/4" up to 6" cobble) along a meandering channel to mimic a seasonal stream. Use larger stones along the banks and smaller pebbles in the bed. Looks like landscape that's always been there, and channels real runoff during heavy rain.

Decorative Ground Cover

Decorative Ground Cover

A 2" to 3" layer of river rock around shrubs, trees, and planting beds replaces mulch with a stone surface that never breaks down. Drains freely, stays put in wind, and reflects light back into the canopy of nearby plants.

Drainage Swales & French Drains

Drainage Swales & French Drains

Smaller river rock (3/8" to 3/4") packs around perforated drain pipe to move water away from foundations, retaining walls, and low spots in the yard. Drains fast, holds shape, and stays visually neutral when surface-exposed.

Pond & Water Feature Edging

Pond & Water Feature Edging

Mid-sized river rock (1.5" to 3") edges ponds, fountains, and pondless waterfalls. The smooth, rounded shape feels right where water lives. Pairs naturally with accent boulders set into the banks.

Erosion Control on Slopes

Erosion Control on Slopes

Larger river rock (3" to 6") layered over landscape fabric holds slopes that would otherwise wash out in heavy rain. Heavy enough to stay put, rounded enough to look intentional rather than industrial like rip rap.

Low-Water & Xeriscape Landscapes

Low-Water & Xeriscape Landscapes

River rock pairs naturally with succulents, agave, ornamental grasses, and California natives. Use it as the ground plane in a drought-tolerant design that needs no mowing or irrigation. Stays clean year-round with no decomposition.

River Rock Buying Guide

Pick the right size, learn placement and drainage tips, and find the look that works for your landscape.

River rock is rounded by water, naturally polished, and one of the most versatile landscape materials we carry. It works as decorative ground cover, drainage fill, dry creek bed structure, pond edging, and slope erosion control β€” and unlike mulch, it never decomposes.

Browse the full river rock collection across every size from pea-sized through 6" cobble. Not sure which size? The table below pairs each size with the projects it does best.

River Rock Sizes vs Use Cases

MaterialBest ForCompactionDrainageCost
Pea-Sized (3/8"–3/4") Drainage layers, French drains, fine ground cover Light (decorative) Excellent $$
Medium (3/4"–1.5") Ground cover around plants, pathway borders Light Excellent $$
Large (1.5"–3") Decorative beds, dry creek bed accents, pond edging None (decorative) Excellent $$
Cobble (3"–6"+) Water features, dry creek banks, slope erosion control None Excellent $$$
Most installations use a mix of sizes for a natural look. See drainage rock and landscape fabric for what goes underneath.

What Landscapers Know

  • Lay landscape fabric underneath. Commercial-grade weed barrier keeps soil from migrating up into the rock and stops weeds from finding daylight through it.
  • 2" to 3" is the right depth for ground cover. Less and the soil shows through, more and the rock starts to spread underfoot. For drainage layers, go 4" or deeper.
  • Mix sizes for natural dry creeks. Use cobble (3" and up) along the banks, medium river rock (1.5" to 3") in the bed, and pea-sized fines (3/8" to 3/4") in the lowest spots. Pure single-size beds look manufactured.
  • River rock darkens when wet. The color you see dry is the lighter end of the range. Mist a sample after delivery to preview the rainy-season look.
  • Edge with steel, stone, or boulders. River rock spreads if it has nowhere to stop. Steel landscape edging, concrete bands, or placed boulders all hold the line.
  • Plan for delivery access. Most river rock comes in 1-ton supersacks or loose by the yard. Confirm gate widths and where the truck can stage before order day.

FAQ

From pea-sized (3/8" to 3/4") up through cobble (3" to 6" and larger). Most projects use a mix β€” see the size table above for which size works best for each use case. Browse the full river rock collection for what's currently in stock.
Use the coverage calculator at the top of this page. As a quick rule: 1 cubic yard of river rock covers roughly 100 square feet at 3 inches deep. For drainage layers (4"+) you'll need proportionally more. River rock weighs about 1.4 tons per cubic yard.
River rock is rounded by water, larger (typically 3/8" and up), and used decoratively or for drainage. Pea gravel is also rounded but smaller (typically 3/8" or less) and used for pathways, patios, and as a packed fine layer. Both are smooth and walkable; river rock reads chunkier.
No. Unlike bark or mulch, river rock does not decompose, blow away, or break down. With landscape fabric underneath, a properly installed bed can last decades with just an occasional refresh of the top layer if it shifts or thins.
Yes β€” small to mid-size projects (a planting bed, a French drain, a small dry creek) are DIY-friendly with a wheelbarrow, rake, and landscape fabric. For larger areas, slope work, or projects that need boulder placement, you may want a landscape contractor or our delivery team. Call (800) 215-7372 with your zip and project size for guidance.

Find the Right River Rock for Your Project

Every size from pea-sized to cobble. Pick at the yard or have it delivered by the supersack or loose by the yard. Project consultation available β€” send us photos and we'll suggest sizes that work.

Shop River Rock

River rock for sale by the bag, the ton, or the yard

Every size and color above is for sale in the quantity your project needs. Borders, planters and small features go by the bag or a sample. Creek beds, swales and open ground cover are ordered as bulk river rock, priced per ton or per cubic yard. Pick a size on any product page and it shows the current cost for that exact unit.

River rock is one of the heavier decorative stones, at roughly 2,900 pounds per cubic yard or about 1.45 tons, so a price per yard and a price per ton are meaningfully different numbers. Size drives coverage too: 1 inch to 3 inch river rock leaves larger voids and covers less ground per ton than smaller, tighter-packing grades.

How much river rock do I need?

Measure length times width, then plan on 2 inches deep for decorative cover and 3 inches or more for a creek bed or drainage channel. As a planning figure, a ton of 1 inch to 3 inch river rock covers roughly 75 square feet at 2 inches. Run your dimensions through the coverage calculator, or read how much river rock do I need and cubic yards vs tons.

Building a drainage feature? See how to build a dry creek bed and landscape rock drainage solutions, and compare pebbles, beach pebbles, and rip rap. For bulk loads and freight, request a quote.

River rock or river rocks?

Same stone either way. Smaller smooth river rocks in the 3/4 to 2 inch range work as ground cover and around plantings, while larger river rocks from 3 to 5 inches and up hold slopes and line dry creek beds.

If you want the smaller, smoother sizes specifically, see river pebbles. For the full size range, everything on this page is river rock sold by the bag, half ton or ton.

Project Guides

Guides for your river rock project

Practical guides from our yard crew on sizing, installing and choosing the right material.

Delivery & Pickup

River Rock Delivery Across California & the Southwest

Order river rock for pickup at our Central Valley or Antelope Valley yards, or bulk delivery throughout California β€” plus Nevada, Arizona, and Colorado. Tell us your ZIP and project and we will quote a delivered price.

Central Valley

Visalia · Fresno · Bakersfield · Tulare · Clovis · Hanford

Antelope Valley & High Desert

Lancaster · Palmdale · Santa Clarita · Victorville · Tehachapi

Southern California

Los Angeles · Riverside · San Bernardino · San Diego

Nevada, Arizona & Colorado

Las Vegas · Phoenix · Tucson · Denver