Giant Sequoias and Coast Redwood Trees are closely related and they are both in the redwood family, Taxodiaceae. However, they are different species. Giant Sequoias (scientific name Sequoiadendron gigantea) are considered the largest trees in the world as measured by the volume of their trunk. The biggest Giant Sequoias can be 40 feet wide at their bases and 275 feet high for a total trunk volume of up to 52,500 cubic feet. Giant Sequoias grow naturally only on the western slope of the Sierra Nevada Mountains in California.

Coast Redwoods (scientific name Sequoia sempervirens) are considered to be the world’s tallest trees and they can get as tall as 365 feet. Coast Redwoods grow naturally only along the Pacific coast of northern California and into southern Oregon.