I don't know, but I can tell you there's no earth at all in a HOLE 2 yards long and 4 yards deep.
1,000,000 cubic yards.
62/3 cubic yards for every 1-foot deep. 5 cubic yards for every 9-inches deep. 31/3 cubic yards for every 6-inches deep. 5/9 cubic yard for every 1-inch deep.
Three acres three inches deep is 403.33 cubic yards.
3,495.6 cubic yards.
24 cubic feet = 0.89 cubic yards
162 cubic feet
13.1 cubic yards, approx.
1.851852 cubic yards
5.6 acres*3.5ft = 27104 sq yards*1.166... yards = 31621.33... cubic yards.
It takes 5.0926 cubic yards or 137.5 cubic feet.
If it is 4 inches deep/thick, 2 cubic yards. If it is 6 inches deep/thick, 3 cubic yards.
6 inches = 1/6 yards. So 70 sq yards * 6 inches = 70*1/6 cubic yards = 11.66... cubic yards.