The Scottish Redwood Trust started cataloguing redwoods in 2018 with approximately 250 trees. We now have a growing group of  'spotters' who, regularly, report their findings. The catalogue, as of 25/11/21, stands at:

Sequoiadendron Giganteum (giant): 3,381

Sequoia semperviren (coast): 938

Metasequoia (dawn): 254

For a total of 4564 trees!