Prairie Ledgerock XL boulders are a longer, linear version of Prairie Ledgerock, making them particularly well-suited for constructing larger retaining walls while ensuring both durability and aesthetic appeal. Ideal for large-scale landscape projects, Prairie Ledgerock XL offers both functionality and natural beauty. These boulders feature flat tops and bottoms and come in neutral, earthy colors of brown, buff, and tan faces with tan to gray tops. They provide efficient coverage of 7.5 face feet per ton and are available in heights of 13″ to 15″, depths ranging from 18″ to 24″, and lengths from 36″ to 84″.