a natural barrier wall made of compacted rock bricks and meshed wire

barrier barriers block blocks boulder boulders brick bricks brown brownish calamities calamity colling compact compacted control cool dark darker dissipate dissipation earth environment environmental erode eroding erosion fire flood gap gaps ground heat held hold holding impede leak leaks light lighter loose loosen mesh meshed moist natural protect protection rain rainy red reddish regulate regulation rock rocks shade shades shield shielding soil stop stopped temperate temperatures unearth wall walls warm warming wet wire wires