Clingmans Dome is the most accessible mountain top in the Great Smoky Mountains National Park. The 7-mile (11 km) Clingmans Dome Road, which is open annually from April 1 through November 30, begins just past Newfound Gap and leads up the mountain to the Forney Ridge Parking Area, 300 feet (91 m) below the summit.
Area Calculator. We sell all of our online materials by the cubic yard. A cubic yard is equal to 27 cubic feet. You can use the online calculator to determine how many cubic yards of material are required. As a general guide, 1 cubic yard of aggregate, sand, or dirt is equivalent to 1.5 tons.
Calculate the volume of dirt needed to fill the area you measured by multiplying length (120 inches) by width (60 inches) by depth (30 inches). Total volume equals 216,000 cubic inches. Convert cubic inches to cubic yards by dividing by 46,656 cubic inches. So, 216,000 cubic inches divided by 46,656 cubic inches equals 4.63 cubic yards. To fill the rectangular area at a depth of 2 feet 6 inches, you will 4.63 cubic yards of fill dirt.