Last night I saw a thread in the gc.com forums about cache density. so I did some math and figured out that from the 97526 zip code there are 327 within 30 miles. 19 of those are mine, and 91 I have not found. Being that I have 500 finds the fact that I had 91 caches within 30 miles surprised me. I wonder how many of those 327 are actually active and how many are in bad shape. I don't really want to look at them that hard, but in the spring I plan to clean a few of those 91 up.