Tim Fitzharris / Rhododendron (Rhododendron sp) flowers and Coast Redwood (Sequoia sempervirens) trees in fog, Redwood National Park, California

Floris van Breugel / Camping in Big Pine Lakes, Sierra Nevada, Sequoia National Park, California, USA, May

Floris van Breugel / First rays of golden sunshine hit Giant Sequoias (Sequoiadendron giganteum) covered in a winter blanket of snow and frost, Grant Grove, Sequoia / Kings Canyon National Park, California, USA November

Floris van Breugel / First rays of golden sunshine hit Giant Sequoias (Sequoiadendron giganteum) covered in a winter blanket of snow and frost, Grant Grove, Sequoia / Kings Canyon National Park, California, USA November

Jeff Foott / Coast Redwood (Sequoia sempervirens) and Oak (Quercus sp) trees, Redwood National Park, California

Chris Mattison / Giant sequoia (Sequoiadendron giganteum) Sierra Nevada, California, USA, May.

Charlie Summers / Black Bear (Ursus americanus) sleeping in a Sitka Spruce tree (Picea sitchensis) alongside Anan Creek, Alaska, July.

Inaki Relanzon / Giant Sequoia (Sequoiadendron giganteum) in Sequoia National Park, California, USA.

Floris van Breugel / A winter blanket of snow covers Giant Redwood trees (Sequoia sempervirens) Sequoia and King's Canyon National Park, California. December 2008.

Floris van Breugel / Morning sun rays breaking through the tree trunks, of Redwood National Park, California, USA. June 2008.

Floris van Breugel / Trunks of Californian Redwood trees (Sequoia sempervirens) and blooming Rhododendron, Redwood National Park, Califorina, USA, June 2008.

Neil Lucas / Giant sequoia trees (Sequoiadendron giganteum) on the edge of lake, with reflections, California, USA, October 2007