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Giant sequoia near the border of the Hebden Wood in Sawley

There is one giant sequoia (Sequoiadendron giganteum) near the border of the Hebden Wood in Sawley (county of North Yorkshire).

I purchased a Nikon Forestry Pro laser some time ago and I have been very fastidious and careful in measuring these trees. I have had visit after visit over the last few weeks as I wanted to be absolutely certain of the consistancy of measurements that were coming in using First Target Priority Mode and Distant Priority Mode. The trees are growing in a difficult position to get clear 'windows' in but I have found the windows for the tallest trees. For the tallest tree, I also cleared all the dead branches of the underplanted Grand Firs to allow a clear view in the base, also clearing some fern fronds to allow an absolute clear view in.

The (new) photo of Hebden Wood below:

Sequoiadendron to right of Norway Spruce in middle of photo, 30.2 metres plus 1.8 metres measured behind the wall- 32 metres

Sequoiadendron at the corner with bent top to the right- 45-45.5 metres

Sequoiadendron immediately behind- 49.5-50 metres range.

Sequoiadendron immediately above the gate with top bent to the right- 47.5 metres plus 1.4 metres behind wall-48.9 metres

Sequoiadendron immediately behind, right spire top - 52.2-53 metre range consistantly using Distant/First Target Modes Girth 475 cm (height measured from a distance of 41 metres from the tree base)

These trees are the tallest trees in Yorkshire, I have more contenders now to measure but I doubt that they will approach the height of these.

Height

The height was measured more than once:
YearHeightMeasurementMeasurement method
2012-08-0655.00 m RedRobLaser with Sine method (e.g. Nikon Forestry 550 laser rangefinder)
2012-09-0453.00 mRedRobLaser with Sine method (e.g. Nikon Forestry 550 laser rangefinder)
2012-10-04~53.00 mRedRobMeasurement method unknown
2013-09-3053.30 mRedRobLaser with Sine method (e.g. Nikon Forestry 550 laser rangefinder)

Each measurement can be done with varying accuracy.

Age

The age of the tree was estimated by these persons:
YearPlanting or germination yearAgeMeasurement
Feb 22, 20121854160 yJeroen Philippona
Aug 6, 20121854160 yRedRob

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Hebden Wood, picture by RedRob

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Location 1

Hebden Wood, picture by RedRob

Hebden Wood, picture by RedRob

Hebden Wood, picture by RedRob

Hebden Wood, picture by RedRob

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