This is one of nine puzzles to guide you back to your car once you’ve walked the Greensand Way
NO CACHES ARE AT THE POSTED CO-ORDINATES. DO NOT GO THERE – instead – solve this simple little puzzle

4 (four) is a number, numeral, and glyph. It is the natural number following 3 and preceding 5. It is the smallest composite number, and is considered unlucky in many East Asian cultures.It was the thunderbird flown by Gordon Tracey and the Crimson Haybailer in Wacky Races which was deemed too politically incorrect to be included in the recent re-make..
You will find this cache at
North 51 (D-D) (D+5) . (D-1) (D+1) (D-3)
East 000 (D) (D+5) . (D-3) (D*2) (D*2)
This cache is one of a linear series of nine. You will need a map to plan your route from one cache to the next, but the paths are quite obvious