Our 4-6″ Rainbow River Rock, also known as Rainbow Cobbles, comes from Glacier Lake, Montana and features the same stunning pastel range as our smaller rainbow options: soft pinks, greens, tans, and purples. Because these stones are naturally tumbled and smooth, they become even more vibrant when wet. At 4 to 6 inches, these are our largest rainbow stones and make a bold visual statement in any landscape.

This size works best for projects where you want rock to be a focal point rather than just ground cover. For example, it is a great choice for:

• Large water features, ponds, and dry creek beds
• Statement landscape borders and garden bed edging
• High-visibility areas where smaller rock would get lost visually
• Accent pieces around boulders, trees, or retaining walls
• Decorative fill where a chunky, natural look is the goal

Want to learn more about how rocks get their colors? Check out our recent blog post: The Colorful World of River Rocks

Sold by the ton. One cubic yard is approximately 1.35 tons, though this may vary by product and application. Not sure how much you need? Call us at 509-235-4511 and we will help you figure it out. Available for pickup at our Cheney, WA yard or bulk delivery across the greater Spokane area.