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Historic Alameda County Caches Challenge Mystery Cache

Hidden : 4/11/2021
Difficulty:
4 out of 5
Terrain:
2 out of 5

Size: Size:   micro (micro)

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Geocache Description:


The cache is at the listed coordinates. To log it as found, please sign the log and meet the challenge requirements.

To claim this challenge as a find, you must find 8 of the 10 oldest caches in Alameda County. Those 10 caches will be different for everybody, because archived caches you have found count! In other words, your 8 oldest finds in Alameda County have to be older than the current 10th-oldest cache in the county. This way, if you are working on the challenge and a cache gets archived, you don't have moving goalposts!

Here's a checker to do the hard part for you:

PGC Checker

Additional Hints (Decrypt)

10.18

Decryption Key

A|B|C|D|E|F|G|H|I|J|K|L|M
-------------------------
N|O|P|Q|R|S|T|U|V|W|X|Y|Z

(letter above equals below, and vice versa)