mathhead’s Letterboxes
(13 listings)
| Letterbox name | Found date | Clue owner | Location | County | |
|---|---|---|---|---|---|
| Cambridge/Cambridge Retired: Mar 24, 2017 | — | mathhead Planted: May 24, 2007 | Cambridge, England, INT | Other International | |
| Extra! Extra! Found: Jan 11, 2011 | — | mathhead Planted: Aug 3, 2009 | ??? | San Mateo | |
| Knock, Knock! Attempted: Apr 15, 2018 | — | mathhead Planted: Jul 26, 2009 | San Jose, CA | Santa Clara | |
| Major Major Found: Apr 5, 2014 | — | mathhead Planted: Aug 8, 2005 | ??? | Mystery | |
| Mary Mary #1 Missing: Apr 2, 2016 | — | mathhead Planted: May 24, 2006 | Saratoga, CA | Santa Clara | |
| Mission Mission Found: Feb 20, 2017 | — | mathhead Planted: Jun 25, 2009 | Santa Clara, CA | Santa Clara | |
| Money, Money Found: Jun 12, 2011 | — | mathhead Planted: Jun 7, 2009 | ??? | Mystery | |
| NEW YORK, NEW YORK! Attempted: May 7, 2013 | — | mathhead Planted: Jun 25, 2005 | Manhattan, NY | New York | |
| NINE x NINE Found: Dec 16, 2014 | — | mathhead Planted: Jun 24, 2009 | ??? | Santa Clara | |
| Peter Peter Attempted: Feb 23, 2017 | — | mathhead Planted: Jan 31, 2005 | San Jose, CA | Santa Clara | |
| Tom, Tom Found: Mar 27, 2013 | — | mathhead Planted: May 24, 2008 | ??? | Mystery | |
| Toot Toot! Found: Dec 1, 2010 | — | mathhead Planted: May 24, 2007 | ??? | Santa Clara | |
| Twinkle Twinkle Found: Jan 9, 2016 | — | mathhead Planted: May 24, 2007 | ??? | Santa Clara |