Columbia River Basalt A - Split
A dark, dense wall stone with naturally fractured faces and irregular shapes. The split finish leaves rough, textured surfaces that catch shadow and read as authentically local. This basalt comes from the same flows that built the Gorge. At 3 to 5 inches thick, it stacks well for both functional walls and rougher step risers.
$470.00 / ton
Disclaimer
While we strive to provide accurate images of our materials on our website, it is important to note that these images are for illustrative purposes only. The actual products in stock may differ in color and appearance due to the natural variations of the materials and the ongoing changes in our inventory. We source many of our materials from multiple quarries in the area and stockpiles can change daily. Customers are highly encouraged to visit our locations and view the materials in-person before placing an order. If color or texture is an important factor, please consider ordering all the materials for your job at one time to ensure consistency.Common Uses
- Dry-stacked retaining walls: Stack pieces by hand to hold back slopes and frame planting beds
- Garden walls and borders: Build low walls that read as natural outcrop rather than manufactured block
- Step risers and rough stairs: Combine with flat caps or slab treads for outdoor stairways with a rugged look
- Rockery accents: Mix with boulders and gravel to anchor planting areas or define grade changes
Material Details
- Unit type: Split wall stone
- Thickness: 3″ to 5″
- Shape: Irregular, hand-fit
- Coverage: 14 to 18 square feet per ton, stacked
- Color: Dark gray to near-black, with some weathered brown tones on exterior faces
- Sold by: Ton
- Typical placement: Dry-stacked over compacted base. Set the largest pieces on the bottom course.
