This is an American National Monument in Wyoming and is a religious symbol to the American Indians. I have copied over yesterdays info and would like to add that this formation is exactly like the Giants Causeway in Northern Ireland although that one has collapsed. Also Tara spoke of seeing it from many miles distance. About 50 million years ago molten magma was forced into sedimentary rocks above it and then cooled underground. As it cooled it contracted and fractured into columns. Over millions of years erosion of the sedimentary rocks exposed Devils Tower. The tower today rises 867 feet (approx 290M) from its base and 5,112 feet above sea level. The area of its top is 1.5 acres, the diameter of its base is 1000 feet. Sage grows atop and there is a family of ground squirrels there too. Zoom works well.