I was preparing for a trip recently and did a search for the nearest 300 caches to my third and final stop. I was supprised at the size (lack of) of the result area. The 300th cache was only 11+miles away. That got me thinking. What was the saturation level of the caches in this area. (How many per square mile?) A little math showed it to be about 3/4ths of a cache per square mile. Not very big. I did some further searching and found a spot in Jacksonville with a Sat.Levl. of 4.2 per sq. mi. How big can they get?
According to the rules no cache within .1 mile of the next. Therefor 100 per square mile right (10x10). Nope. If you use some good hexagonal packing you can get 115.
Now the question. What is the most saturated zipcode (or other region/spot) out there for caches.
Do a search around a code, get the distance of the 100th cache. Sat level is then
100/(dist^2*pi)
