Table Mountain is a peak rising on the north side of the Columbia River in Washington state, about 4 miles (6.4 km) north-northwest of Bonneville Dam.

Its southeast face drops 2,400 feet (730 m) in less than one horizontal mile (1.6 km.

Together these peaks form an impressive group on the Washington side of the Gorge.

Between 1425 and 1450 AD the south side of Table Mountain sheared off and dammed the Columbia River in an event known as the Bonneville Slide.

[4] The river soon carved a new bend around to the south, but for a while Native Americans living in the area could walk across.