Update 10/29/2019: I replaced the missing cache with a 16-ounce SnapWare container, in a slightly different location. I've changed the ciphertext to give the new coordinates and other new info. (If you've already deciphered the old text, add 0.002 minutes to the latitude and 0.001 minutes to the longitude.)
It's possible that one or both of the older containers is still there, either an 8 ounce plastic jar or an ammo can. You can sign the log of whatever container you find, but if it's not the SnapWare, please let me know where you found it. Thanks.
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You can check your answers for this puzzle on GeoChecker.com.