http://www.geocaching.com/seek/cache_details.aspx?ID=8144 For May 2003. He may just not like signing logs. Most of the ones I looked at  say TN/LN/SN

http://www.geocaching.com/seek/cache_details.aspx?ID=48216 

http://www.geocaching.com/seek/cache_details.aspx?ID=44862

http://www.geocaching.com/seek/cache_details.aspx?ID=33289And these entries verify his finds

Till a voice, as bad as Conscience, rang interminable changes
  On one everlasting Whisper day and night repeated -- so:
"Something hidden.  Go and find it. Go and look behind the Ranges --
  "Something lost behind the Ranges. Lost and waiting for you. Go!"
 
Rudyard Kipling ,   The Explorer  1898

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