3 miles (4.8 km) to 4 miles (6.4 km) wide, generally extending in a west–east direction, and is located along the southern boundary of Badlands National Park's Stronghold Unit, but not a part of it.

The Table mountain rises about 300 feet from the floor of the South Dakota badlands.

Water falling onto the southern flank of Cuny Table flows to the White River.

The table was named after Charles Cuny Senior, who moved to the area with his family in 1880.

In 1942, a portion of the Cuny Table was bought by the military to establish a bombing range.