Heal The World GeoArt
This series consists of 78 caches. 50% number searches with basic maths and 50% Jigsaw puzzles.
This series is 18 km or 11 miles long.
_________________________________________________________________________________________
This series is prodominatly out in the rural country side. You may notice there are larger gaps where you will pass residential housing. The suggested parking for this series is down by the Village Sign where there is space for multiple cars, including the space on the green there (N52° 4.812' E000° 16.469' ... CB21 4PH ...) . There will be a short walk from there to reach cache #1. Use the Mid-Waypoint to find the public footpath.
_________________________________________________________________________________________
_________________________________________________________________________________________
Your Puzzle: The Ozone Layer
The ozone layer or ozone shield is a region of Earth's stratosphere that absorbs most of the Sun's ultraviolet radiation. It contains high concentration of ozone (O3) in relation to other parts of the atmosphere, although still small in relation to other gases in the stratosphere. The ozone layer contains less than 10 parts per million of ozone, while the average ozone concentration in Earth's atmosphere as a whole is about 0.3 parts per million. The ozone layer is mainly found in the lower portion of the stratosphere, from approximately 15 to 35 kilometers (9.3 to 21.7 mi) above Earth, although its thickness varies seasonally and geographically
The ozone layer was discovered in ABCD by the French physicists Charles Fabry and Henri Buisson.
The cache can be found at: N52 04.BD(A+D) E000 16.(A+A)(D+D)(C+C)
_________________________________________________________________________________________