Blue Mountain Shale is one of the most distinctive decorative rocks we carry. Each piece has a naturally flat, smooth surface and a color range that moves between blues, oranges, and warm neutrals; no two pieces look quite the same! That natural variation is what makes this rock such a strong choice for rustic landscape designs where a lively, organic feel matters more than uniformity.

At 2 to 3 inches, the medium size is easy to work with by hand and settles naturally into place as ground cover. It can help suppress weeds, holds up well over time, and adds visual interest to garden beds, borders, and open landscape areas.

This rock works best for:

• Decorative ground cover in garden beds and borders
• Weed suppression around plants and shrubs
• Rustic landscape designs and natural garden styles
• Pathway edging and accent areas
• Low maintenance landscaping where color and texture matter

Blue mountain shale is sold by the ton. One cubic yard is approximately 1.15 tons. Not sure how much you need? Call us at 509-235-4511 and we will help you estimate based on your project area.

Need a larger size for stepping stones or DIY projects? Blue mountain shale is also available as large shale in 4 to 8 inch pieces.