Nearby Letterboxes
Note that distance is dependent on the accuracy of each clue, typically city center.
(521 listings)
| Letterbox name | Found date | Clue owner | Location | County | Distance | |
|---|---|---|---|---|---|---|
| Alma Mater Found: Jun 2, 2010 | — | Adoptable Planted: May 23, 2010 | Concord, CA | Contra Costa | 0 | |
| BART Station #3 Retired: Mar 31, 2016 | — | Adoptable Planted: Feb 7, 2010 | Concord, CA | Contra Costa | 0 | |
| BART Station #6 Retired: Mar 30, 2016 | — | Adoptable Planted: Feb 27, 2010 | Concord, CA | Contra Costa | 0 | |
| Krazy Kreatures #9 - Concord Retired: Mar 30, 2016 | — | 8 Bare Feet Planted: Apr 6, 2009 | Concord, CA | Contra Costa | 0 | |
| Ringo Duck and Cee Cee's Box Attempted: Feb 7, 2010 | — | Adoptable Planted: Sep 13, 2005 | Concord, CA | Contra Costa | 0 | |
| ShenastigatorsLovesAbFab's Gishwhes 2017 Attempted: Aug 17, 2017 | — | Adoptable Planted: Aug 11, 2017 | Monument Corridor Trail Concord, CA | Contra Costa | 1.2 | |
| unknown Found: Jan 31, 2017 | — | Adoptable Planted: Nov 27, 2016 | hilton hotel Concord, CA | Contra Costa | 1.3 | |
| LUCIA MONROE Retired: Mar 30, 2016 | — | Adoptable Planted: Sep 11, 2011 | Hillcrest Park Concord, CA | Contra Costa | 1.5 | |
| "4 of a Kind" (#2) Found: Mar 4, 2007 | — | Adoptable Planted: Jan 3, 2006 | Pleasant Hill, CA | Contra Costa | 2.6 | |
| BART Station #2 Found: Feb 16, 2010 | — | Adoptable Planted: Feb 7, 2010 | Pleasant Hill, CA | Contra Costa | 2.6 | |
| Briones - Blue Oak Found: Aug 17, 2011 | — | Adoptable Planted: Aug 1, 2004 | Pleasant Hill, CA | Contra Costa | 2.6 | |
| Contra Costa Series #2 Found: May 7, 2007 | — | Adoptable Planted: Not specified | Pleasant Hill, CA | Contra Costa | 2.6 | |
| Diablo Vista Retired: Mar 30, 2016 | — | Adoptable Planted: Dec 24, 2006 | Pleasant Hill, CA | Contra Costa | 2.6 | |
| Dino Hill Found: Oct 12, 2015 | — | Adoptable Planted: Dec 30, 2006 | Pleasant Hill, CA | Contra Costa | 2.6 | |
| Fly Me To the Moon! Found: Feb 8, 2010 | — | Adoptable Planted: Mar 20, 2007 | Pleasant Hill, CA | Contra Costa | 2.6 | |
| I Left in San Francisco! Found: Feb 26, 2010 | — | Adoptable Planted: Mar 20, 2007 | Pleasant Hill, CA | Contra Costa | 2.6 | |
| Princess Cupcake Attempted: Sep 13, 2015 | — | Adoptable Planted: Nov 28, 2012 | Pleasant Hill Park Pleasant Hill, CA | Contra Costa | 2.8 | |
| Trail Mix Found: Nov 30, 2016 | — | Adoptable Planted: Nov 23, 2016 | Concord/Walnut Creek, CA | Contra Costa | 2.9 | |
| Baylands is all the Buzz (3) Found 3: May 28, 2012 | — | Adoptable Planted: May 28, 2012 | Baylands Park Mountain View, CA | Santa Clara | 4.2 | |
| BART Station #1 Retired: Mar 31, 2016 | — | Adoptable Planted: Feb 7, 2010 | Walnut Creek, CA | Contra Costa | 5 | |
| Buena Vista Bulldogs Found: Mar 8, 2010 | — | Adoptable Planted: Mar 6, 2010 | Walnut Creek, CA | Contra Costa | 5.3 | |
| Castle Rock Found: Jul 27, 2009 | — | Adoptable Planted: Apr 15, 2003 | Walnut Creek, CA | Contra Costa | 5.3 | |
| Castle Rock...Not for the feint of heart hike! Found: Jun 1, 2012 | — | Adoptable Planted: Jul 6, 2008 | Walnut Creek, CA | Contra Costa | 5.3 | |
| Contra Costa Series #4 Found: May 7, 2007 | — | Adoptable Planted: Apr 1, 2003 | Walnut Creek, CA | Contra Costa | 5.3 | |
| Dig Dug Found: Jan 10, 2010 | — | Adoptable Planted: Jul 25, 2009 | Walnut Creek, CA | Contra Costa | 5.3 | |
| How to Make a Sugarloaf (5) Retired 5: Mar 30, 2016 | — | Adoptable Planted: Mar 16, 2010 | Walnut Creek, CA | Contra Costa | 5.3 | |
| Indian Valley Hawks Retired: Mar 30, 2016 | — | Adoptable Planted: Mar 6, 2010 | Walnut Creek, CA | Contra Costa | 5.3 | |
| Las Lomas Knights Retired: Mar 30, 2016 | — | Adoptable Planted: Mar 6, 2010 | Walnut Creek, CA | Contra Costa | 5.3 | |
| Murwood Mustangs Found: Feb 28, 2010 | — | Adoptable Planted: Feb 26, 2010 | Walnut Creek, CA | Contra Costa | 5.3 | |
| New Years on Mt. Diablo Found: Feb 27, 2011 | — | Adoptable Planted: Jan 1, 2007 | Walnut Creek, CA | Contra Costa | 5.3 | |
| Parkmead Panthers Found: Mar 8, 2010 | — | Adoptable Planted: Mar 6, 2010 | Walnut Creek, CA | Contra Costa | 5.3 | |
| Pool Umbrella Found: Sep 18, 2010 | — | Adoptable Planted: Mar 4, 2010 | Walnut Creek, CA | Contra Costa | 5.3 | |
| Princess Cee Cee's Lindsay Box Attempted: May 23, 2006 | — | Adoptable Planted: Sep 27, 2005 | Walnut Creek, CA | Contra Costa | 5.3 | |
| Sycamore in Winter Retired: Mar 30, 2016 | — | Adoptable Planted: Mar 6, 2010 | Walnut Creek, CA | Contra Costa | 5.3 | |
| The Runaway Bunny (9) Retired 9: Mar 30, 2016 | — | Adoptable Planted: Apr 4, 2010 | Walnut Creek, CA | Contra Costa | 5.3 | |
| Under the Brush Found: Nov 23, 2010 | — | Adoptable Planted: Oct 25, 2009 | Walnut Creek, CA | Contra Costa | 5.3 | |
| Walnut Creek Intermediate Squires Found: Mar 8, 2010 | — | Adoptable Planted: Mar 6, 2010 | walnut Creek, CA | Contra Costa | 5.3 | |
| Walnut Heights Cougars Found: Feb 28, 2010 | — | Adoptable Planted: Feb 26, 2010 | Walnut Creek, CA | Contra Costa | 5.3 | |
| North Bound 5 Road Trip: Conversation Piece #3 | — | Adoptable Planted: Jul 3, 2012 | John "Chuck" Erreca Southbound I 5 Restarea -, Interstate 5 South, CA where ever ..., CA | Merced | 5.6 | |
| South Bound 5 Road Trip: Conversation Piece #1 | — | Adoptable Planted: Jun 29, 2012 | John "Chuck" Erreca Southbound I 5 Restarea -, Interstate 5 South, CA where ever ..., CA | Merced | 5.6 | |
| "4 of a Kind" (#1) Found: Feb 25, 2010 | — | Adoptable Planted: Dec 30, 2006 | Clayton, CA | Contra Costa | 5.8 | |
| Contra Costa Series #1 Attempted: May 13, 2007 | — | Adoptable Planted: Feb 23, 2003 | Clayton, CA | Contra Costa | 5.8 | |
| Blue Oak leaf (2) Found 2: Jan 4, 2019 | — | blues moon Planted: Jul 22, 2011 | Mt.Wanda Martinez, CA | Contra Costa | 5.8 | |
| Dinosaur Hill Attempted: Nov 5, 2006 | — | Adoptable Planted: Jan 29, 2005 | Pleasant Hill/Lafayette, CA | Contra Costa | 6 | |
| Contra Costa Series #3 Attempted: May 7, 2007 | — | Adoptable Planted: Not specified | Martinez, CA | Contra Costa | 6.3 | |
| Easter Egg Hunt!! Thru 3/22! Found: Mar 23, 2008 | — | Adoptable Planted: Mar 8, 2008 | Martinez, CA | Contra Costa | 6.3 | |
| Rankin Park Missing: Mar 30, 2016 | — | Adoptable Planted: Jul 20, 2010 | Martinez, CA | Contra Costa | 6.3 | |
| "John of the Mountains" Found: Jan 7, 2018 | — | Nature Hikers Planted: Jan 6, 2018 | Martinez, CA | Contra Costa | 6.3 | |
| Rainbows and Unicorns Attempted: Dec 20, 2014 | — | Adoptable Planted: Nov 22, 2014 | Briones Regional Park Martinez, CA | Contra Costa | 6.8 | |
| BART Station #4 Retired: Mar 31, 2016 | — | Adoptable Planted: Feb 21, 2010 | Lafayette, CA | Contra Costa | 7.9 | |
| Fun on the Water (4) Retired 4: Mar 30, 2016 | — | Adoptable Planted: Apr 1, 2010 | Lafayette, CA | Contra Costa | 7.9 | |
| Hummers Found: Jan 21, 2007 | — | Adoptable Planted: Dec 31, 2006 | Lafayette, CA | Contra Costa | 7.9 | |
| The Sprouts Found: Jul 27, 2009 | — | Adoptable Planted: Dec 31, 2006 | Lafayette, CA | Contra Costa | 7.9 | |
| Tycho's T Retired: Mar 30, 2016 | — | Adoptable Planted: Nov 15, 2007 | Lafayette, CA | Contra Costa | 7.9 | |
| Daffy's Disappointment Attempted: Aug 21, 2011 | — | Adoptable Planted: Jul 12, 2009 | Benicia, CA | Solano | 8.5 | |
| Sandlot Found: Apr 24, 2012 | — | Adoptable Planted: Nov 7, 2004 | Benicia, CA | Solano | 8.5 | |
| Truck stop at the beach Attempted: Aug 21, 2011 | — | Adoptable Planted: Nov 25, 2009 | Benicia, CA | Solano | 8.5 | |
| Witchypoo Found: Nov 22, 2009 | — | Princess Lea Planted: Oct 27, 2003 | Benicia, CA | Solano | 8.5 | |
| BART Station #7 Retired: Mar 30, 2016 | — | Adoptable Planted: Feb 27, 2010 | Pittsburg, CA | Contra Costa | 8.7 | |
| Hemme-ingway (4) Retired 4: Mar 30, 2016 | — | Adoptable Planted: Mar 8, 2010 | Alamo, CA | Contra Costa | 8.8 | |
| BIG Grapes Attempted: Apr 24, 2012 | — | Adoptable Planted: Jun 25, 2011 | Benicia Community Park Benicia, CA | Solano | 10.3 | |
| BART Station #5 Retired: Apr 2, 2016 | — | Adoptable Planted: Feb 21, 2010 | Orinda, CA | Contra Costa | 10.7 | |
| Fish Ranch Attempted: Jul 3, 2010 | — | Adoptable Planted: Jan 22, 2006 | Orinda, CA | Contra Costa | 10.7 | |
| Frolicsome Frog Found: Oct 3, 2014 | — | Adoptable Planted: Nov 1, 2005 | Orinda, CA | Contra Costa | 10.7 | |
| Lake View at Tilden Park (2) Attempted 2: Oct 3, 2014 | — | pawca Planted: Sep 5, 2005 | Orinda, CA | Contra Costa | 10.7 | |
| orinda encina Found: Jan 28, 2010 | — | fleetwood7 Planted: Jul 6, 2007 | orinda, CA | Contra Costa | 10.7 | |
| Pinewood Derby Found: Mar 23, 2010 | — | Adoptable Planted: Mar 19, 2010 | Orinda, CA | Contra Costa | 10.7 | |
| Take A Hike Letterbox Found: Jan 1, 2008 | — | Adoptable Planted: Sep 3, 2003 | Richmond - Orinda, CA | Contra Costa | 10.7 | |
| Up From the Deep For the Beautiful View Retired: Apr 24, 2017 | — | Adoptable Planted: Jan 9, 2009 | Orinda, CA | Contra Costa | 10.7 | |
| Yo Ho, Yo Ho, A Pirate's Life For Me (2) Found 1: Jul 8, 2007 | — | Adoptable Planted: Sep 26, 2004 | Richmond/Orinda, CA | Contra Costa | 10.7 | |
| Danville Depot Retired: Mar 30, 2016 | — | Adoptable Planted: Feb 26, 2010 | Danville, CA | Contra Costa | 10.9 | |
| Hiking to Hades Attempted: Feb 25, 2016 | — | Wisconsin Hiker Planted: Jul 24, 2009 | Danville, CA | Contra Costa | 10.9 | |
| Arti-fact Found: Aug 20, 2010 | — | Adoptable Planted: Aug 29, 2008 | crockett, CA | Contra Costa | 11.2 | |
| Chat 'N' Chew Found: Aug 20, 2010 | — | Adoptable Planted: Apr 15, 2008 | Crockett, CA | Contra Costa | 11.2 | |
| Crockett Hills - Happy 4th - MIA (2) | — | pawca Planted: Jul 4, 2006 | Crockett, CA | Contra Costa | 11.2 | |
| Mady's Butterfly Box Attempted: Aug 20, 2010 | — | Adoptable Planted: Nov 23, 2008 | Crockett, CA | Contra Costa | 11.2 | |
| Sugar City Attempted: Aug 20, 2010 | — | Adoptable Planted: Aug 2, 2007 | Crockett, CA | Contra Costa | 11.2 | |
| Zampa Bridge | — | Adoptable Planted: Aug 31, 2007 | Crockett, CA | Contra Costa | 11.2 | |
| Grateful Dead Series #2 Steal Your Face Attempted: Dec 3, 2011 | — | Adoptable Planted: Aug 22, 2004 | Moraga, CA | Contra Costa | 11.3 | |
| Icons for California -- Saint Mary Found: May 10, 2010 | — | Adoptable Planted: Jun 3, 2006 | Moraga, CA | Contra Costa | 11.3 | |
| Wham! Bang! Boom! Retired: Mar 30, 2016 | — | monotonia Planted: Oct 8, 2006 | Moraga, CA | Contra Costa | 11.3 | |
| Black Diamond Found: Jan 29, 2009 | — | Doublesaj & Old Blue Planted: Dec 31, 2004 | Antioch, CA | Contra Costa | 12.4 | |
| Homage to the Past (missing) Missing: Feb 6, 2016 | — | Adoptable Planted: Apr 22, 2006 | Antioch, CA | Contra Costa | 12.4 | |
| Hopeful Miner (missing) Missing: Feb 6, 2016 | — | Adoptable Planted: Apr 22, 2006 | Antioch, CA | Contra Costa | 12.4 | |
| Sgt. Scheile "AnySoldier.Com" Memorial Attempted: Jul 30, 2006 | — | Adoptable Planted: Oct 13, 2005 | Antioch, CA | Contra Costa | 12.4 | |
| My First Plant Found: Nov 10, 2014 | — | Kudichan Planted: Nov 7, 2014 | Huckleberry Botanic Regional Preserve Oakland, CA | Alameda | 12.7 | |
| JewelLakeTilden (2) Attempted 2: Apr 11, 2012 | — | Adoptable Planted: Apr 4, 2012 | Tilden Regional Park Berkeley, CA | Alameda | 13 | |
| Prima Materia Found: Jan 29, 2010 | — | Adoptable Planted: Jan 28, 2010 | Tilden Park Berkeley, CA | Alameda | 13.4 | |
| Prima Materia 2 Found: Feb 3, 2010 | — | Adoptable Planted: Jan 31, 2010 | Tilden Park Berkeley, CA | Alameda | 13.4 | |
| Steam Train Trail Found: May 10, 2012 | — | Adoptable Planted: Apr 6, 2012 | Tilden Park Berkeley, CA | Alameda | 13.4 | |
| Revolutionary Heroes of the Oakland Hills Found: Feb 9, 2010 | — | Adoptable Planted: Feb 8, 2010 | Redwood Regional Park Oakland, CA | Alameda | 13.5 | |
| GnOOOMMMes (3) Found 2: Jun 24, 2015 | — | Kudichan Planted: Jun 21, 2015 | Montclair Railroad Trail Oakland, CA | Alameda | 13.8 | |
| Plant Communities: Central Oak Woodland (5) Found 1: Mar 31, 2010 | — | Adoptable Planted: Mar 26, 2010 | San Ramon, CA | Contra Costa | 14 | |
| Cordonices Creek Found: Sep 13, 2012 | — | Adoptable Planted: Jun 1, 2012 | Cordonices Park Berkeley, CA | Alameda | 14.1 | |
| The Sugar Found: Dec 17, 2010 | — | Adoptable Planted: Aug 6, 2010 | Kensington, CA | Contra Costa | 14.3 | |
| Sobrante Ridge, retired Retired: Feb 9, 2016 | — | pawca Planted: Mar 27, 2005 | El Sobrante, CA | Contra Costa | 14.4 | |
| The Boxer Family Series (5) Retired 5: Jul 24, 2018 | — | Doublesaj & Old Blue Planted: Aug 16, 2003 | El Sobrante, CA | Alameda | 14.4 | |
| Fleur Rouge (nee Another purple flower) Found: Jul 28, 2005 | — | pawca Planted: Mar 26, 2005 | Pinole, CA | Contra Costa | 14.7 | |
| The Adobe (2) Found 1: Mar 25, 2009 | — | Adoptable Planted: Apr 12, 2008 | Pinole, CA | Contra Costa | 14.7 | |
| Finding Finley | — | suncassie Planted: Jul 13, 2020 | Finley Road, Pleasanton, 94588 Pleasanton, CA | Alameda | 15 |