Nearby Letterboxes
Note that distance is dependent on the accuracy of each clue, typically city center.
(683 listings)
Letterbox name | Found date | Clue owner | Location | County | Distance | |
---|---|---|---|---|---|---|
GOING MUSICAL IN SAN MATEO Attempted: Jul 8, 2007 | — | Adoptable Planted: May 5, 2007 | San Mateo-North Shoreview area, CA | San Mateo | 0 | |
SCOUTING AROUND IN SAN MATEO Attempted: Jul 8, 2007 | — | Adoptable Planted: May 5, 2007 | San Mateo- North Shoreview area, CA | San Mateo | 0 | |
SOMETHING FISHY IN SAN MATEO Attempted: Jul 8, 2007 | — | Adoptable Planted: May 5, 2007 | San Mateo- North Shoreview Area, CA | San Mateo | 0 | |
Troop 61736 Attempted: Mar 24, 2017 | — | Adoptable Planted: Mar 1, 2017 | Sunnybrae San Mateo, CA | San Mateo | 0.9 | |
beresford park - no longer active Retired: Jan 4, 2021 | — | look for more trains Planted: Sep 2, 2006 | San Mateo, CA | San Mateo | 1.4 | |
Born in the USA Attempted: Jan 24, 2014 | — | Adoptable Planted: Jul 12, 2010 | San Mateo, CA | San Mateo | 1.4 | |
Get to the Point Attempted: Sep 6, 2010 | — | Adoptable Planted: May 1, 2004 | San Mateo, CA | San Mateo | 1.4 | |
In The Hollow Found: Oct 15, 2015 | — | look for more trains Planted: Sep 14, 2006 | San Mateo, CA | San Mateo | 1.4 | |
San Mateo Public Library | — | Adoptable Planted: Dec 4, 2006 | San Mateo, CA | San Mateo | 1.4 | |
Shopaholic Found: Aug 6, 2009 | — | Adoptable Planted: Jul 29, 2009 | San Mateo, CA | San Mateo | 1.4 | |
Windy Weather Retired: Mar 30, 2016 | — | Adoptable Planted: Sep 14, 2009 | San Mateo, CA | San Mateo | 1.4 | |
Wetlands Hurray! Found: Jun 30, 2008 | — | Adoptable Planted: Sep 23, 2004 | Foster City, CA | San Mateo | 1.9 | |
Bay Front Path Attempted: Jul 8, 2006 | — | Adoptable Planted: Jun 22, 2006 | Foster City/ Burlingame, CA | San Mateo | 2.1 | |
Audio Drama - Dinotopia Retired: Feb 7, 2016 | — | Nature Hikers Planted: Jul 13, 2013 | Casanova Park San Mateo, CA | San Mateo | 2.8 | |
Laurie's Playground -- MISSING 7-21-07 Missing: Feb 6, 2016 | — | Adoptable Planted: Jul 4, 2007 | South San Mateo, CA | San Mateo | 2.9 | |
SFO Attempted: Nov 1, 2010 | — | Adoptable Planted: Dec 31, 2004 | Burlingame, CA | San Mateo | 3.6 | |
What Is It? (letterbox/geocache hybrid) Attempted: Aug 12, 2018 | — | Adoptable Planted: Sep 4, 2013 | The It's It Factory Burlingame, CA | San Mateo | 3.9 | |
This Way to The Egress (Microbox) Missing: Mar 30, 2016 | — | Adoptable Planted: Mar 17, 2006 | Redwood Shores, CA | San Mateo | 3.9 | |
Dead Men Tell No Tales Attempted: Aug 31, 2014 | — | Adoptable Planted: Jun 26, 2012 | Twin Pines Park Belmont, CA | San Mateo | 4 | |
4-11-44 Traveler OK: Dec 11, 2011 | — | Adoptable Planted: Jul 27, 2011 | Hillsborough, CA | San Mateo | 4.2 | |
Crossroads Attempted: Jun 29, 2013 | — | Adoptable Planted: Oct 17, 2006 | Hillsborough, CA | San Mateo | 4.2 | |
Jepson Laurel Attempted: Oct 4, 2018 | — | Adoptable Planted: Dec 17, 2006 | Hillsborough, CA | San Mateo | 4.2 | |
Siempre Adelante- Retired: May 22, 2016 | — | Adoptable Planted: Oct 15, 2004 | Hillsborough, CA | San Mateo | 4.2 | |
Harry Potter Horcrux 6 Found: Aug 12, 2018 | — | Adoptable Planted: Jan 1, 2012 | Privet Drive Hillsborough, CA | San Mateo | 4.6 | |
Harry Potter (Book 2) (4) Found 4: Apr 27, 2020 | — | Nature Hikers Planted: May 24, 2016 | Hidden Canyon Park Belmont, CA | San Mateo | 4.7 | |
"H"is for HILLER Aviation Museum Attempted: Aug 31, 2014 | — | Adoptable Planted: Jun 16, 2012 | HILLER Aviation Museum, 601 Skyway Road San Carlos, CA | San Mateo | 4.9 | |
Eaton Park: Stumped Found: Jun 10, 2015 | — | Adoptable Planted: Apr 3, 2010 | San Carlos, CA | San Mateo | 5 | |
Running Rampant Found: Jan 27, 2010 | — | Adoptable Planted: Jan 4, 2010 | San Carlos, CA | San Mateo | 5 | |
San Carlos Pine Found: Jun 26, 2009 | — | Adoptable Planted: Feb 1, 2008 | San Carlos, CA | San Mateo | 5 | |
Go to the Fault-MISSING Missing: Feb 6, 2016 | — | Adoptable Planted: Nov 6, 2004 | Millbrae, CA | San Mateo | 5 | |
Where's Waldo? Attempted: Aug 11, 2008 | — | Adoptable Planted: Aug 10, 2004 | Millbrae, CA | San Mateo | 5 | |
Hangman Game 10 Found: Oct 4, 2018 | — | Silver Eagle Planted: Nov 2, 2010 | Millbrae, CA | San Mateo | 5 | |
Ladies' Little Letterbox Found: Aug 18, 2015 | — | Adoptable Planted: Jun 9, 2015 | San Carlos, CA | San Mateo | 5.4 | |
Big Canyon: 4 Boxes by Girl Scouts (4) Found 2: Dec 16, 2013 | — | Adoptable Planted: Apr 21, 2013 | Big Canyon Park San Carlos, CA | San Mateo | 6 | |
It's All About The Benjamins (letterbox/geocache h Found: Dec 30, 2014 | — | Adoptable Planted: Sep 4, 2013 | Ben Franks No 2 Redwood City, CA | San Mateo | 6.5 | |
Duck, Duck, Goose Found: Oct 23, 2023 | — | Nature Hikers Planted: Jun 6, 2019 | Redwood City, CA | San Mateo | 7 | |
"Pura Vida" Attempted: May 14, 2013 | — | Adoptable Planted: Dec 7, 2008 | Redwood City, CA | San Mateo | 7 | |
Deep Diver Attempted: Dec 30, 2014 | — | Adoptable Planted: Dec 26, 2008 | Redwood City, CA | San Mateo | 7 | |
It's Your Day!---CURRENTLY MIA! Found: Aug 14, 2008 | — | Adoptable Planted: Jul 9, 2008 | Redwood City, CA | San Mateo | 7 | |
Let's Go Frogging! Missing: Mar 30, 2016 | — | Adoptable Planted: Mar 25, 2007 | Redwood City, CA | San Mateo | 7 | |
Perspicacious Pelican Retired: Apr 28, 2017 | — | Adoptable Planted: Dec 26, 2008 | Redwood City, CA | San Mateo | 7 | |
Sweeney Ridge Attempted: Oct 2, 2018 | — | Adoptable Planted: Nov 16, 2008 | San Bruno, CA | San Mateo | 7.2 | |
Hangman Game 12 Found: Oct 2, 2018 | — | Silver Eagle Planted: Nov 1, 2010 | San Bruno, CA | San Mateo | 7.2 | |
aMAZEing Found: Mar 18, 2009 | — | Adoptable Planted: May 1, 2008 | South San Francisco, CA | San Mateo | 8.2 | |
Gear up on Mushrooms! Found: Jun 16, 2017 | — | Adoptable Planted: Dec 31, 2012 | SSF Centennial Trail South San Francisco, CA | San Mateo | 8.9 | |
Portola "Discovery" Site Attempted: Oct 2, 2018 | — | Adoptable Planted: Nov 6, 2011 | Sweeney Ridge National Park Pacifica, CA | San Mateo | 9 | |
YPS - Yam Postal Service Found: Mar 26, 2017 | — | Adoptable Planted: Apr 12, 2015 | N 37 40.143 W 122 24.930 South San Francisco, CA | San Mateo | 9.1 | |
Darcy Farrow Found: Apr 22, 2016 | — | Adoptable Planted: Feb 27, 2009 | Brisbane, CA | San Mateo | 9.3 | |
Holbrook Palmer Park Found: May 7, 2006 | — | Adoptable Planted: Feb 9, 2006 | Atherton, CA | San Mateo | 9.5 | |
Harry Potter (Book 3) (5) Found 5: May 19, 2021 | — | Nature Hikers Planted: Jul 4, 2017 | Purisima Creek Redwoods Open Space Preserve Redwood Park, CA | San Mateo | 9.7 | |
Diving Fishes Found: Jan 11, 2024 | — | Kudichan Planted: Jun 8, 2019 | Woodside, CA | San Mateo | 10.1 | |
Little Cat Steps Found: Jan 11, 2024 | — | Kudichan Planted: Jun 8, 2019 | Woodside, CA | San Mateo | 10.1 | |
Cowgirls - Missing as of 08/06/07 Missing: Feb 6, 2016 | — | Adoptable Planted: Jul 4, 2007 | Woodside, CA | San Mateo | 10.1 | |
Dynasty Found: Jul 15, 2010 | — | Adoptable Planted: Apr 16, 2009 | woodside, CA | San Mateo | 10.1 | |
Edgewood Park Attempted: Jul 15, 2008 | — | Adoptable Planted: Mar 26, 2006 | Woodside, CA | San Mateo | 10.1 | |
Jumble Game 16 Found: Jan 4, 2024 | — | Silver Eagle Planted: Jul 27, 2011 | Woodside, CA | San Mateo | 10.1 | |
The Bee Area Hitchhiker Hostel Attempted: Jul 2, 2014 | — | Adoptable Planted: Oct 11, 2010 | Woodside, CA | San Mateo | 10.1 | |
Elizabeth & Darcy Found: Jan 1, 2023 | — | Nature Hikers Planted: Aug 18, 2013 | Half Moon Bay, CA | San Mateo | 10.2 | |
Banana Slug City & Ladybug Jamboree (2) Found 2: Dec 10, 2008 | — | Adoptable Planted: Dec 25, 2004 | Half Moon Bay, CA | San Mateo | 10.2 | |
Coastside Trail Series-reported missing 7/07 (2) Missing 2: Feb 6, 2016 | — | Adoptable Planted: Nov 27, 2004 | Half Moon Bay, CA | San Mateo | 10.2 | |
Cowell Ranch Beach Found: Dec 11, 2008 | — | TimberToo Planted: Jun 6, 2007 | Half Moon Bay, CA | San Mateo | 10.2 | |
In memory of My Dad Missing: Mar 30, 2016 | — | Adoptable Planted: Nov 13, 2011 | Skylawn Memorial Park San Mateo on the way to Half Moon Bay, CA | San Mateo | 10.2 | |
Jumble Game 18 Attempted: Jan 28, 2024 | — | Silver Eagle Planted: Jul 28, 2011 | Half Moon Bay, CA | San Mateo | 10.2 | |
Picnic at the Beach Retired: Mar 30, 2016 | — | Adoptable Planted: Jul 19, 2008 | Half Moon Bay, CA | San Mateo | 10.2 | |
Pigeon Point Lighthouse Attempted: Mar 14, 2008 | — | Adoptable Planted: Mar 12, 2003 | Half Moon Bay, CA | San Mateo | 10.2 | |
Greek Attempted: Jun 14, 2012 | — | Adoptable Planted: Nov 4, 2008 | Menlo Park, CA | San Mateo | 10.5 | |
Peetnik Found: Nov 15, 2011 | — | Adoptable Planted: Nov 4, 2008 | Menlo Park, CA | San Mateo | 10.5 | |
Wild & Free (replaced 4/15/08) Found: Mar 26, 2008 | — | Adoptable Planted: Mar 25, 2008 | Menlo Park, CA | San Mateo | 10.5 | |
Wild & Free( #2) Missing: Jun 17, 2012 | — | Adoptable Planted: Apr 15, 2008 | Menlo Park, CA | San Mateo | 10.5 | |
Quilt Sampler (9) Found 9: Nov 21, 2015 | — | Nature Hikers Planted: Nov 15, 2015 | Purisima Redwood Creek Open Space Preserve Redwood Park, CA | San Mateo | 10.5 | |
Hangman Game 9 Found: Sep 12, 2015 | — | Silver Eagle Planted: Nov 1, 2010 | Pacifica, CA | San Mateo | 10.5 | |
Grandma Lita Found: Dec 29, 2007 | — | Adoptable Planted: May 11, 2007 | Pacifica, CA | San Mateo | 10.5 | |
Harold and Maude #1 (Sarah's Babybox) Attempted: Jun 8, 2008 | — | Adoptable Planted: Sep 10, 2005 | Pacifica, CA | San Mateo | 10.5 | |
These boots are made for hiking Attempted: Aug 11, 2016 | — | Adoptable Planted: Jul 25, 2010 | Pacifica, CA | San Mateo | 10.5 | |
Upside Down Tree Letterbox Found: Aug 3, 2013 | — | Adoptable Planted: Apr 15, 2008 | Pacifica, CA | San Mateo | 10.5 | |
Bay shore Roundhouse | — | Schpug Family Planted: Sep 6, 2015 | 2800 Bayshore Blvd Brisbane, CA | San Mateo | 10.8 | |
Macy's Delight Found: Apr 18, 2016 | — | Adoptable Planted: Apr 3, 2016 | Peralta, past Rosita Pacifica, CA | San Mateo | 10.8 | |
"A" is for AIRPLANE Attempted: Oct 3, 2012 | — | Adoptable Planted: Jun 15, 2012 | Jack Lyle Park Menlo Park, CA | San Mateo | 10.9 | |
'Dem bones (3) Retired 3: Mar 30, 2016 | — | Adoptable Planted: Jun 9, 2012 | Holy Cross Cemetery Menlo Park, CA, CA | San Mateo | 11.1 | |
Peep-Squeek Retired: Apr 24, 2017 | — | Adoptable Planted: Jul 7, 2009 | Colma, CA | San Mateo | 11.1 | |
Do Butterflies Make Good Pets? Retired: Nov 16, 2016 | — | Nature Hikers Planted: May 14, 2013 | Coyote Hills Regional Park Fremont, CA | Alameda | 11.4 | |
Poopy in Pacifica Retired: Apr 24, 2017 | — | Adoptable Planted: Jul 18, 2009 | Fairmont Park Pacifica, CA | San Mateo | 11.5 | |
Point Montara Found: May 16, 2016 | — | Adoptable Planted: Dec 10, 2008 | Montara, CA | San Mateo | 11.9 | |
Pagurus, the tidepool entertainer Attempted: Jul 28, 2011 | — | Adoptable Planted: Jan 15, 2005 | Moss Beach, CA | San Mateo | 12 | |
Sea Elephant Found: Apr 27, 2014 | — | Silver Eagle Planted: Mar 14, 2010 | Moss Beach, CA | San Mateo | 12 | |
Brownie Troop #62376 Attempted: Jul 7, 2017 | — | Adoptable Planted: May 16, 2016 | Fitzgerald Marine Reserve Moss Beach, CA | San Mateo | 12.1 | |
Fish Out Of Water Attempted: Jul 8, 2007 | — | Adoptable Planted: Jul 8, 2004 | Daly City, CA | San Mateo | 12.2 | |
The Frolicking Place (No Clues) Found: Jul 4, 2009 | — | Adoptable Planted: Oct 24, 2004 | Daly City, CA | San Mateo | 12.2 | |
toxophile Attempted: Oct 14, 2007 | — | Adoptable Planted: Mar 16, 2007 | daly city, CA | San Mateo | 12.2 | |
Love-a-lot Bear Retired: May 30, 2016 | — | Adoptable Planted: Nov 17, 2010 | Stanford, CA | Santa Clara | 12.3 | |
The Dish Attempted: Jan 28, 2023 | — | Adoptable Planted: Jul 29, 2005 | Palo Alto, CA | Santa Clara | 12.5 | |
"Tulip" Retired: Mar 30, 2016 | — | Adoptable Planted: Nov 4, 2008 | Palo Alto, CA | Santa Clara | 12.5 | |
A Garden with Legacy Missing: Aug 13, 2013 | — | Adoptable Planted: Nov 25, 2010 | Palo Alto, CA | Santa Clara | 12.5 | |
Angel of Grief-Reported missing 12/31/2005 Missing: Feb 6, 2016 | — | Adoptable Planted: Jul 29, 2005 | Palo Alto, CA | Santa Clara | 12.5 | |
Baylands Duck Pond(missing) Missing: Feb 6, 2016 | — | TimberToo Planted: Nov 23, 2005 | Palo Alto, CA | Santa Clara | 12.5 | |
Baylands Memory Attempted: Mar 23, 2008 | — | Adoptable Planted: Dec 30, 2003 | Palo Alto, CA | Santa Clara | 12.5 | |
Call of the Agave-reported missing 5/5/06 Missing: Feb 6, 2016 | — | Adoptable Planted: Sep 1, 2005 | Palo Alto, CA | Santa Clara | 12.5 | |
Dusk to Dawn Found: Jul 30, 2009 | — | Adoptable Planted: Dec 4, 2007 | Palo Alto, CA | Santa Clara | 12.5 | |
Flutter-By Attempted: Jul 12, 2019 | — | Adoptable Planted: Nov 26, 2010 | Palo Alto, CA | Santa Clara | 12.5 | |
Godzilla's Nemesis Attempted: Aug 11, 2016 | — | Adoptable Planted: Sep 1, 2005 | Palo Alto, CA | Santa Clara | 12.5 |