Sierra Brown has a very rich combination of colors. Its rock face is dominated by browns, greys and greens, that vary from warm caramel to sable black. When it is split, its cleft face exposes the greyish blue layers, occasionally dotted with fossils. Sierra Brown Single-Head Rubble is full size stone perfect for durable structural and hardscaping applications like rustic retaining walls, define garden beds with edging, form borders, construct water features like waterfalls, koi/fish ponds, and even bases for grills or mailboxes, adding durability, texture, and a natural aesthetic to outdoor spaces.