27 cubic feet = 1 cubic yardVolume = (surface area) x (depth) = (43,560) x (4) = 174,240 cubic feet = 6,453 1/3 cubic yards
An acre is a measure of area, not volume, thus it is not correct to say "1 acre deep". It makes no sense. An acre is 43559.66 square feet. So, the number of cubic feet in 1 acre of land that is 1...
27 x 4 = 108 (because cubic yard is 3 ft x 3 ft x 3 ft = 27)
Three feet are in one yard.
3 feet per yard so that would be 12 feet.