Nearby Letterboxes
Note that distance is dependent on the accuracy of each clue, typically city center.
(176 listings)
| Letterbox name | Found date | Clue owner | Location | County | Distance | |
|---|---|---|---|---|---|---|
| Brownieflies Attempted: Sep 14, 2013 | — | Adoptable Planted: May 1, 2013 | Miwok Park Brentwood, CA | Contra Costa | 0 | |
| Krazy Kreatures #8 - Brentwood Retired: Mar 31, 2016 | — | 8 Bare Feet Planted: Apr 4, 2009 | Brentwood, CA | Contra Costa | 1.8 | |
| Nike Missile LA-96C Letterbox Found: Nov 27, 2009 | — | geishagirl Planted: May 29, 2005 | Brentwood, CA | Los Angeles | 1.8 | |
| Odyssey of the Mind - California State Competition Attempted: Mar 26, 2012 | — | Adoptable Planted: Apr 4, 2009 | Brentwood, CA | Contra Costa | 1.8 | |
| Black Diamond Found: Jan 29, 2009 | — | Doublesaj & Old Blue Planted: Dec 31, 2004 | Antioch, CA | Contra Costa | 6 | |
| Homage to the Past (missing) Missing: Feb 6, 2016 | — | Adoptable Planted: Apr 22, 2006 | Antioch, CA | Contra Costa | 6 | |
| Hopeful Miner (missing) Missing: Feb 6, 2016 | — | Adoptable Planted: Apr 22, 2006 | Antioch, CA | Contra Costa | 6 | |
| Sgt. Scheile "AnySoldier.Com" Memorial Attempted: Jul 30, 2006 | — | Adoptable Planted: Oct 13, 2005 | Antioch, CA | Contra Costa | 6 | |
| BART Station #7 Retired: Mar 30, 2016 | — | Adoptable Planted: Feb 27, 2010 | Pittsburg, CA | Contra Costa | 10.5 | |
| "4 of a Kind" (#1) Found: Feb 25, 2010 | — | Adoptable Planted: Dec 30, 2006 | Clayton, CA | Contra Costa | 11.8 | |
| Contra Costa Series #1 Attempted: May 13, 2007 | — | Adoptable Planted: Feb 23, 2003 | Clayton, CA | Contra Costa | 11.8 | |
| Finding Finley | — | suncassie Planted: Jul 13, 2020 | Finley Road, Pleasanton, 94588 Pleasanton, CA | Alameda | 12.4 | |
| Only one room? Found: Sep 13, 2020 | — | suncassie Planted: Jul 13, 2020 | 1650 Finley Road, Pleasanton, 94588 Pleasanton, CA | Alameda | 12.8 | |
| Brannan Duck Retired: Mar 12, 2016 | — | Adoptable Planted: Jul 9, 2005 | Rio Vista, CA | Sacramento | 14.2 | |
| Docked at the Marina Found: Jan 26, 2009 | — | Adoptable Planted: Jul 21, 2006 | Rio Vista, CA | Solano | 14.2 | |
| First Box Attempted: Jun 19, 2008 | — | Adoptable Planted: Jun 23, 2006 | Rio Vista, CA | Solano | 14.2 | |
| Humphrey's Box Attempted: Mar 11, 2007 | — | Adoptable Planted: Jul 10, 2006 | Rio Vista, CA | Solano | 14.2 | |
| Resting in Peace Attempted: Jun 19, 2008 | — | Adoptable Planted: Jun 30, 2006 | Rio Vista, CA | Solano | 14.2 | |
| Trail Mix Found: Nov 30, 2016 | — | Adoptable Planted: Nov 23, 2016 | Concord/Walnut Creek, CA | Contra Costa | 14.7 | |
| Alma Mater Found: Jun 2, 2010 | — | Adoptable Planted: May 23, 2010 | Concord, CA | Contra Costa | 17.1 | |
| BART Station #3 Retired: Mar 31, 2016 | — | Adoptable Planted: Feb 7, 2010 | Concord, CA | Contra Costa | 17.1 | |
| BART Station #6 Retired: Mar 30, 2016 | — | Adoptable Planted: Feb 27, 2010 | Concord, CA | Contra Costa | 17.1 | |
| Krazy Kreatures #9 - Concord Retired: Mar 30, 2016 | — | 8 Bare Feet Planted: Apr 6, 2009 | Concord, CA | Contra Costa | 17.1 | |
| Ringo Duck and Cee Cee's Box Attempted: Feb 7, 2010 | — | Adoptable Planted: Sep 13, 2005 | Concord, CA | Contra Costa | 17.1 | |
| Hiking to Hades Attempted: Feb 25, 2016 | — | Wisconsin Hiker Planted: Jul 24, 2009 | Danville, CA | Contra Costa | 17.7 | |
| Danville Depot Retired: Mar 30, 2016 | — | Adoptable Planted: Feb 26, 2010 | Danville, CA | Contra Costa | 17.7 | |
| LUCIA MONROE Retired: Mar 30, 2016 | — | Adoptable Planted: Sep 11, 2011 | Hillcrest Park Concord, CA | Contra Costa | 17.9 | |
| Trick or Treat Retired: Feb 17, 2020 | — | Nature Hikers Planted: Oct 5, 2013 | G&M Farms Livermore, CA | Alameda | 17.9 | |
| ShenastigatorsLovesAbFab's Gishwhes 2017 Attempted: Aug 17, 2017 | — | Adoptable Planted: Aug 11, 2017 | Monument Corridor Trail Concord, CA | Contra Costa | 18 | |
| unknown Found: Jan 31, 2017 | — | Adoptable Planted: Nov 27, 2016 | hilton hotel Concord, CA | Contra Costa | 18.3 | |
| Plant Communities: Central Oak Woodland (5) Found 1: Mar 31, 2010 | — | Adoptable Planted: Mar 26, 2010 | San Ramon, CA | Contra Costa | 18.4 | |
| Hemme-ingway (4) Retired 4: Mar 30, 2016 | — | Adoptable Planted: Mar 8, 2010 | Alamo, CA | Contra Costa | 18.4 | |
| "4 of a Kind" (#2) Found: Mar 4, 2007 | — | Adoptable Planted: Jan 3, 2006 | Pleasant Hill, CA | Contra Costa | 18.6 | |
| BART Station #2 Found: Feb 16, 2010 | — | Adoptable Planted: Feb 7, 2010 | Pleasant Hill, CA | Contra Costa | 18.6 | |
| Briones - Blue Oak Found: Aug 17, 2011 | — | Adoptable Planted: Aug 1, 2004 | Pleasant Hill, CA | Contra Costa | 18.6 | |
| Contra Costa Series #2 Found: May 7, 2007 | — | Adoptable Planted: Not specified | Pleasant Hill, CA | Contra Costa | 18.6 | |
| Diablo Vista Retired: Mar 30, 2016 | — | Adoptable Planted: Dec 24, 2006 | Pleasant Hill, CA | Contra Costa | 18.6 | |
| Dino Hill Found: Oct 12, 2015 | — | Adoptable Planted: Dec 30, 2006 | Pleasant Hill, CA | Contra Costa | 18.6 | |
| Fly Me To the Moon! Found: Feb 8, 2010 | — | Adoptable Planted: Mar 20, 2007 | Pleasant Hill, CA | Contra Costa | 18.6 | |
| I Left in San Francisco! Found: Feb 26, 2010 | — | Adoptable Planted: Mar 20, 2007 | Pleasant Hill, CA | Contra Costa | 18.6 | |
| Birthday Attempted: Oct 10, 2012 | — | Pebbles Planted: Dec 3, 2009 | Livermore, CA | Alameda | 18.8 | |
| Brushy Peak (2) Attempted 2: Jan 7, 2012 | — | Adoptable Planted: Mar 8, 2009 | Livermore, CA | Alameda | 18.8 | |
| Camp Arroyo Outdoor School Retired: May 29, 2012 | — | Little Foot 1221 Planted: Jun 11, 2008 | Livermore, CA | Alameda | 18.8 | |
| Go Fish! letterbox Retired: Mar 31, 2016 | — | Camp Frekkles Planted: Aug 18, 2007 | Livermore, CA | Alameda | 18.8 | |
| H. Potter Found: Jul 5, 2010 | — | Pebbles Planted: Dec 3, 2009 | Livermore, CA | Alameda | 18.8 | |
| Livermore: The Movie Attempted: May 6, 2017 | — | Adoptable Planted: Nov 25, 2004 | Livermore, CA | Alameda | 18.8 | |
| Morgan Territory Boxes 1&2 (2) Found 2: Jan 8, 2012 | — | Coyotl Clan Planted: Not specified | Livermore, CA | Alameda | 18.8 | |
| Motion Machine Found: Mar 6, 2021 | — | Adoptable Planted: Nov 30, 2004 | Livermore, CA | Alameda | 18.8 | |
| Muchacho Fiesta Retired: Mar 31, 2016 | — | Camp Frekkles Planted: Aug 18, 2007 | Livermore, CA | Alameda | 18.8 | |
| My Purple Cupcake Retired: Feb 25, 2016 | — | Adoptable Planted: Jun 29, 2010 | Livermore, CA | Alameda | 18.8 | |
| Pine Tree Island Attempted: Sep 18, 2020 | — | Adoptable Planted: Nov 18, 2006 | Livermore, CA | Alameda | 18.8 | |
| Rainbow Tree Retired: Apr 25, 2017 | — | Adoptable Planted: Nov 18, 2006 | Livermore, CA | Alameda | 18.8 | |
| Armadillo Milly Attempted: Jan 7, 2012 | — | Camp Frekkles Planted: Oct 20, 2007 | Livermore, CA | Alameda | 18.8 | |
| Sycamore Grove Found: Mar 29, 2008 | — | Adoptable Planted: Mar 3, 2004 | Livermore, CA | Alameda | 18.8 | |
| Princess Cupcake Attempted: Sep 13, 2015 | — | Adoptable Planted: Nov 28, 2012 | Pleasant Hill Park Pleasant Hill, CA | Contra Costa | 18.9 | |
| BART Station #1 Retired: Mar 31, 2016 | — | Adoptable Planted: Feb 7, 2010 | Walnut Creek, CA | Contra Costa | 19.1 | |
| Buena Vista Bulldogs Found: Mar 8, 2010 | — | Adoptable Planted: Mar 6, 2010 | Walnut Creek, CA | Contra Costa | 19.1 | |
| Castle Rock Found: Jul 27, 2009 | — | Adoptable Planted: Apr 15, 2003 | Walnut Creek, CA | Contra Costa | 19.1 | |
| Castle Rock...Not for the feint of heart hike! Found: Jun 1, 2012 | — | Adoptable Planted: Jul 6, 2008 | Walnut Creek, CA | Contra Costa | 19.1 | |
| Contra Costa Series #4 Found: May 7, 2007 | — | Adoptable Planted: Apr 1, 2003 | Walnut Creek, CA | Contra Costa | 19.1 | |
| Dig Dug Found: Jan 10, 2010 | — | Adoptable Planted: Jul 25, 2009 | Walnut Creek, CA | Contra Costa | 19.1 | |
| How to Make a Sugarloaf (5) Retired 5: Mar 30, 2016 | — | Adoptable Planted: Mar 16, 2010 | Walnut Creek, CA | Contra Costa | 19.1 | |
| Indian Valley Hawks Retired: Mar 30, 2016 | — | Adoptable Planted: Mar 6, 2010 | Walnut Creek, CA | Contra Costa | 19.1 | |
| Las Lomas Knights Retired: Mar 30, 2016 | — | Adoptable Planted: Mar 6, 2010 | Walnut Creek, CA | Contra Costa | 19.1 | |
| Murwood Mustangs Found: Feb 28, 2010 | — | Adoptable Planted: Feb 26, 2010 | Walnut Creek, CA | Contra Costa | 19.1 | |
| New Years on Mt. Diablo Found: Feb 27, 2011 | — | Adoptable Planted: Jan 1, 2007 | Walnut Creek, CA | Contra Costa | 19.1 | |
| Parkmead Panthers Found: Mar 8, 2010 | — | Adoptable Planted: Mar 6, 2010 | Walnut Creek, CA | Contra Costa | 19.1 | |
| Pool Umbrella Found: Sep 18, 2010 | — | Adoptable Planted: Mar 4, 2010 | Walnut Creek, CA | Contra Costa | 19.1 | |
| Princess Cee Cee's Lindsay Box Attempted: May 23, 2006 | — | Adoptable Planted: Sep 27, 2005 | Walnut Creek, CA | Contra Costa | 19.1 | |
| Sycamore in Winter Retired: Mar 30, 2016 | — | Adoptable Planted: Mar 6, 2010 | Walnut Creek, CA | Contra Costa | 19.1 | |
| The Runaway Bunny (9) Retired 9: Mar 30, 2016 | — | Adoptable Planted: Apr 4, 2010 | Walnut Creek, CA | Contra Costa | 19.1 | |
| Under the Brush Found: Nov 23, 2010 | — | Adoptable Planted: Oct 25, 2009 | Walnut Creek, CA | Contra Costa | 19.1 | |
| Walnut Creek Intermediate Squires Found: Mar 8, 2010 | — | Adoptable Planted: Mar 6, 2010 | walnut Creek, CA | Contra Costa | 19.1 | |
| Walnut Heights Cougars Found: Feb 28, 2010 | — | Adoptable Planted: Feb 26, 2010 | Walnut Creek, CA | Contra Costa | 19.1 | |
| Quest Attempted: Mar 22, 2020 | — | Adoptable Planted: Feb 15, 2013 | Shannon Park Dublin, CA | Alameda | 20.3 | |
| Girl Scout Troop #663 Box 1 | — | Adoptable Planted: May 22, 2017 | Oak Grove Park Stockton, CA | San Joaquin | 20.5 | |
| 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 | 20.8 | |
| 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 | 20.8 | |
| gingerbreadman Found: Mar 23, 2020 | — | Adoptable Planted: Mar 30, 2008 | Dublin, CA | Alameda | 20.9 | |
| Kate's Birthday Skates Found: Apr 18, 2010 | — | Adoptable Planted: Apr 10, 2010 | Dublin, CA | Alameda | 20.9 | |
| Snowflake1 Attempted: Dec 8, 2015 | — | Adoptable Planted: Mar 30, 2008 | Dublin, CA | Alameda | 20.9 | |
| Dinosaur Hill Attempted: Nov 5, 2006 | — | Adoptable Planted: Jan 29, 2005 | Pleasant Hill/Lafayette, CA | Contra Costa | 20.9 | |
| Baylands is all the Buzz (3) Found 3: May 28, 2012 | — | Adoptable Planted: May 28, 2012 | Baylands Park Mountain View, CA | Santa Clara | 21.3 | |
| BART Station #8 Retired: Mar 31, 2016 | — | Adoptable Planted: Feb 27, 2010 | Pleasanton, CA | Alameda | 21.7 | |
| Pleasanton Ridge (6) Attempted 2: Jan 31, 2011 | — | Coyotl Clan Planted: Dec 31, 1969 | Pleasanton, CA | Alameda | 21.7 | |
| The Mustang Box Retired: Mar 31, 2016 | — | Adoptable Planted: Aug 3, 2005 | Pleasanton, CA | Alameda | 21.7 | |
| Bear’s Cave Found: Nov 28, 2007 | — | Adoptable Planted: Aug 29, 2007 | Tracy, CA | San Joaquin | 21.7 | |
| Take Me For A Walk Attempted: Nov 1, 2009 | — | Adoptable Planted: Nov 3, 2008 | Tracy, CA | San Joaquin | 21.7 | |
| Come Out And Play OK: Jun 22, 2017 | — | Nature Hikers Planted: Jun 18, 2013 | Pleasanton, CA | Alameda | 21.8 | |
| Short walk to sunshine Attempted: Mar 5, 2021 | — | Adoptable Planted: Jul 15, 2014 | Pleasanton, CA | Alameda | 21.8 | |
| Parks Rock Found: Aug 1, 2021 | — | GreenGrlz Planted: Jan 4, 2021 | Pleasanton, CA | Alameda | 21.8 | |
| State of Giving Found: Aug 17, 2013 | — | Adoptable Planted: Dec 27, 2009 | Pleasanton, CA | Alameda | 21.8 | |
| Grateful Dead Series #1 - He's Gone Attempted: Feb 21, 2022 | — | Adoptable Planted: Aug 8, 2004 | Pleasanton/Sunol, CA | Alameda | 22.1 | |
| BART Station #4 Retired: Mar 31, 2016 | — | Adoptable Planted: Feb 21, 2010 | Lafayette, CA | Contra Costa | 22.2 | |
| Fun on the Water (4) Retired 4: Mar 30, 2016 | — | Adoptable Planted: Apr 1, 2010 | Lafayette, CA | Contra Costa | 22.2 | |
| Hummers Found: Jan 21, 2007 | — | Adoptable Planted: Dec 31, 2006 | Lafayette, CA | Contra Costa | 22.2 | |
| The Sprouts Found: Jul 27, 2009 | — | Adoptable Planted: Dec 31, 2006 | Lafayette, CA | Contra Costa | 22.2 | |
| Tycho's T Retired: Mar 30, 2016 | — | Adoptable Planted: Nov 15, 2007 | Lafayette, CA | Contra Costa | 22.2 | |
| Blue Oak leaf (2) Found 2: Jan 4, 2019 | — | blues moon Planted: Jul 22, 2011 | Mt.Wanda Martinez, CA | Contra Costa | 22.9 | |
| Contra Costa Series #3 Attempted: May 7, 2007 | — | Adoptable Planted: Not specified | Martinez, CA | Contra Costa | 23.1 |