Photo Tour: Institute for Redwood Ecology, Humboldt State University.

[Wikipedia] Range, Introduction Elsewhere: Sequoiadendron giganteum, also known as the giant sequoia, giant redwood, Sierra redwood or Wellingtonia is a coniferous tree, classified in the family Cupressaceae in the subfamily Sequoioideae. Giant sequoia specimens are the most massive trees on Earth.[3] They are native to the groves on the western slopes of the Sierra Nevada mountain range of California but have been introduced, planted, and grown around the world. (link added by Mary Ann Machi)