Natural basalt rock walls are characteristic of landscapes here in the Northwest. They are made by carefully stacked basalt rock to form a beautiful and natural rock retaining wall. When constructed properly, they are actually quite strong. They have a natural and free flowing look. Basalt rock walls fit well with less formal landscapes and compliment flagstone work and water features very well. The possibilities with basalt walls are limited only by one’s creativity. You can create retaining walls, raised gardens, raised patios, borders for planting beds, and more using basalt wall rock.