Your answer is more accurate than mine, but does not technically meet the stated criteria of a ".05 mile buffer zone." Of course, as you point out, a "floating" buffer zone, while not meeting the stated goal, does allow for more points. Bill in Willcox _____ From: az-geocaching-bounces@listserv.azgeocaching.com [mailto:az-geocaching-bounces@listserv.azgeocaching.com] On Behalf Of Tim Giron Sent: Monday, March 14, 2005 9:02 PM To: listserv@azgeocaching.com Subject: Re: [Az-Geocaching] Maximum square mile cache density With this new constraint (which I will call interlocking horizontal neighbors), I will offer 2 answers to be debated. The first is 120, since now the rows are all 10 "dots" wide and they just shift back and forth, forming triangles. However, this leaves approx 250 feet wasted at the top of the square (since there is no longer a benefit to "squaring up" the sides. So, I will throw out another, softer number of 125 which is the average for two squares stacked vertically (the 250 feet from each add up to enough to make another row which takes 457 feet, and they split the number in the row). Tim Team AZFastFeet Okay, maybe I opened a can of worms here... I should be more specific...I was trying to figure out how many caches can fit into a square mile, leaving enough buffer zone (.05 mile) around the edges, so each square mile around the area in question can also have the same amount of caches? Any math geniuses out there? Anyone? Scott and I were discussing this today, and also called it a "Power Grid"... Maybe on Terracaching.com....thinking, thinking.....