slate stone wall and gray mortar

apprentice background barricade barrier bedrock blocked blocks breastwork build chiseled close closeup craftsmanship cut design empty fortification freestanding gray grays grey horizontal horizontally how impediment iron level mason masonry metamorphosed mortar natural negative open oxidation oxide partition placement red repair repairs resource resources restore restored rock rocky rusted rusty security shaped skilled slabs slate space stacked stone stoneworks tabs taupes template textured textures thin wall walls yourself