Loneliest Mystery/Unknowns
San Mateo county
California

Total records: 499, Page 1 of 5
Rank Geocache Age Finds cCP
(nfCP)
1 Birthday Puzzle by naala007
San Mateo county, CA		 11 years 11 100
(91.8)
2 Well Mapped Cacher (mjp303 motorbug) Challenge by bthomas
San Mateo county, CA		 11 years
2 months		 12 93.1
(86.0)
3 Song-quences by Dr. Flonase
San Mateo county, CA		 4 years
6 months		 5 90.5
(75.4)
4 Flipped Celebrities by Dr. Flonase
San Mateo county, CA		 4 years
3 months		 5 85.5
(71.3)
5 Neutrino by fizzymagic
San Mateo county, CA		 21 years
3 months		 25 85.2
(82.0)
6 To Infinity and Beyond by naala007
San Mateo county, CA		 10 years
7 months		 13 81.8
(75.9)
7 Cashew Run by Dr. Flonase
San Mateo county, CA		 2 years
5 months		 3 81.1
(60.8)
8 FF10K: A Purple Problem for a Preeminent Puzzler by Rogue Ramblers
San Mateo county, CA		 7 years
2 months		 9 80.2
(72.2)
9 M4 by Rogue Ramblers
San Mateo county, CA		 20 years
9 months		 27 77.1
(74.3)
10 Clifford, The Big Read, Dog by Dr. Flonase
San Mateo county, CA		 2 years
11 months		 4 74.9
(60.0)
11 Beverages of the World by Dr. Flonase
San Mateo county, CA		 4 years
4 months		 6 72.2
(61.9)
12 2453 Melville Puzzle by Dr. Flonase
San Mateo county, CA		 8 months 1 69.3
(34.6)
13 E14 by bassocantor
San Mateo county, CA		 12 years
11 months		 19 68.2
(64.8)
14 Uniform Crux of the world by greenusagi
San Mateo county, CA		 9 years
5 months		 14 67.7
(63.2)
15 Frustration by kbseydel
San Mateo county, CA		 13 years
4 months		 20 66.9
(63.7)
16 Pigs will fly when I solve a Venona puzzle by flowerisland
San Mateo county, CA		 13 years
1 month		 20 65.7
(62.6)
17 WarNinjas Hacked YamJerky's Game! by WarNinjas
San Mateo county, CA		 10 years
7 months		 17 62.5
(59.0)
18 Ohlone Shellmounds of San Bruno Mountain by deadley
San Mateo county, CA		 4 years
11 months		 8 62.3
(55.4)
19 Frustration #2 by caccbag
San Mateo county, CA		 13 years
4 months		 22 60.6
(58.0)
20 E11 by bassocantor
San Mateo county, CA		 13 years 23 56.9
(54.5)
21 E13 by bassocantor
San Mateo county, CA		 13 years 23 56.6
(54.2)
22 Admirable Anthologies by Dr. Flonase
San Mateo county, CA		 3 years
11 months		 7 56.3
(49.3)
23 Liz and Her Five Brothers and Three Sisters by kindredlaugh
San Mateo county, CA		 17 years
10 months		 32 55.8
(54.1)
24 Fun with Ron by mcpuke
San Mateo county, CA		 20 years 36 55.8
(54.3)
25 How to Create A Puzzle Cache by caccbag
San Mateo county, CA		 14 years
10 months		 27 55.2
(53.3)
26 Cachetaways by caccbag
San Mateo county, CA		 13 years
1 month		 24 54.8
(52.6)
27 11 - I by caccbag
San Mateo county, CA		 13 years
11 months		 26 53.6
(51.6)
28 (5 x 50) - (GC378D3 Animals) x (# of Knees = Foot) by caccbag
San Mateo county, CA		 14 years
5 months		 27 53.5
(51.6)
29 She turned me into a NEWT! by Michael_SFBA
San Mateo county, CA		 20 years
8 months		 39 53.2
(51.9)
30 Frogger's Revenge by caccbag
San Mateo county, CA		 13 years
3 months		 25 53.1
(51.1)
31 Tower of Power (RASH) by Dr. Flonase
San Mateo county, CA		 5 years
9 months		 11 52.9
(48.5)
32 Out on a Limb by deadley
San Mateo county, CA		 10 years
5 months		 20 52.2
(49.7)
33 Gone with the Wind by crawburr
San Mateo county, CA		 14 years
10 months		 29 51.4
(49.7)
34 Zombie Hunter - Final Zombie Challenge by caccbag
San Mateo county, CA		 14 years
10 months		 29 51.4
(49.7)
35 YEM by hrc333
San Mateo county, CA		 12 years
8 months		 25 50.7
(48.7)
36 Even Moreso than Castor by Rogue Ramblers
San Mateo county, CA		 13 years
6 months		 27 50.3
(48.5)
37 Fishing for Clues by HackinHiker
San Mateo county, CA		 4 years 8 50.0
(44.5)
38 Zig Zag by greenusagi
San Mateo county, CA		 9 years
5 months		 19 49.9
(47.4)
39 Time To Kill by caccbag
San Mateo county, CA		 14 years
10 months		 30 49.6
(48.0)
40 A Contract Game by caccbag
San Mateo county, CA		 13 years
4 months		 27 49.5
(47.7)
41 Turkey! by Dr. Flonase
San Mateo county, CA		 5 years
5 months		 11 49.4
(45.2)
42 Jenny at Thornewood OSP by Dr. Flonase
San Mateo county, CA		 3 years
5 months		 7 49.2
(43.1)
43 DON'T BE CROSS - GET CACHE by caccbag
San Mateo county, CA		 14 years
2 months		 29 49.1
(47.5)
44 Sam's Bonus View by Michael_SFBA
San Mateo county, CA		 18 years
1 month		 37 49.0
(47.7)
45 Presidents on Money by Dr. Flonase
San Mateo county, CA		 5 years
10 months		 12 48.9
(45.1)
46 The Bismarck by caccbag
San Mateo county, CA		 13 years
2 months		 27 48.8
(47.1)
47 Cost Accounting by kindredlaugh
San Mateo county, CA		 17 years
4 months		 36 48.3
(47.0)
48 Furball by caccbag
San Mateo county, CA		 13 years
2 months		 28 47.2
(45.5)
49 Cliff Knowles by caccbag
San Mateo county, CA		 12 years
8 months		 27 47.1
(45.4)
50 Olfactory Hues by hrc333
San Mateo county, CA		 12 years
7 months		 27 46.9
(45.2)
51 Caesar's Clock by Dr. Flonase
San Mateo county, CA		 4 years
2 months		 9 46.9
(42.2)
52 Static by jimbexleyspeed
San Mateo county, CA		 18 years
7 months		 40 46.6
(45.5)
53 Where Are You? by Dr. Flonase
San Mateo county, CA		 5 years
6 months		 12 46.5
(42.9)
54 Entrance to Arastradero Preserve? by naala007
San Mateo county, CA		 10 years
7 months		 23 46.3
(44.3)
55 WarNinjas Deadleyest catch! by WarNinjas
San Mateo county, CA		 11 years
6 months		 25 46.1
(44.3)
56 Constant Confusion by beefezard
San Mateo county, CA		 11 years
11 months		 26 46.0
(44.3)
57 Pirate Randolph Scott by caccbag
San Mateo county, CA		 11 years
5 months		 25 45.8
(44.0)
58 Major Inconvenience by crawburr
San Mateo county, CA		 20 years
11 months		 46 45.5
(44.6)
59 Even Moreso by jimbexleyspeed
San Mateo county, CA		 13 years
8 months		 30 45.5
(44.1)
60 War"Ninjas" Challenge by WarNinjas
San Mateo county, CA		 12 years
7 months		 28 45.2
(43.6)
61 La Música Otra Vez by Dr. Flonase
San Mateo county, CA		 4 years 9 44.7
(40.2)
62 Murrieta's Treasure by caccbag
San Mateo county, CA		 13 years
4 months		 30 44.5
(43.1)
63 Fencing by Dr. Flonase
San Mateo county, CA		 3 years
11 months		 9 44.1
(39.7)
64 A Ride Remembered by bassocantor
San Mateo county, CA		 8 years
4 months		 19 44.1
(41.9)
65 WarNinjas: OMG WOW YAY! by WarNinjas
San Mateo county, CA		 12 years
7 months		 29 43.4
(41.9)
66 A Touch of Madness by hrc333
San Mateo county, CA		 11 years
2 months		 26 43.3
(41.7)
67 VFMW #11: BOB by hrc333
San Mateo county, CA		 10 years
4 months		 24 43.1
(41.3)
68 Traveling Daze by caccbag
San Mateo county, CA		 14 years
2 months		 33 43.1
(41.8)
69 Gateway to the Peninsula #11 by caccbag
San Mateo county, CA		 15 years 35 43.0
(41.8)
70 San Which? by Dr. Flonase
San Mateo county, CA		 5 years
1 month		 12 42.9
(39.6)
71 Take It Or Leave It - An Offer You Can't Refuse by caccbag
San Mateo county, CA		 12 years
10 months		 30 42.8
(41.4)
72 Refining of a Fantasy by hrc333
San Mateo county, CA		 10 years
8 months		 25 42.7
(41.0)
73 VFMW #9: Buggin Out by hrc333
San Mateo county, CA		 10 years
7 months		 25 42.7
(41.0)
74 Lamppost by Dr. Flonase
San Mateo county, CA		 5 years
11 months		 14 42.5
(39.7)
75 Year of the Dragon by mblatch
San Mateo county, CA		 8 years
10 months		 21 42.2
(40.3)
76 Eye Tests by Dr. Flonase
San Mateo county, CA		 5 years 12 42.1
(38.8)
77 Crossword Clues 3 - Swap by Dr. Flonase
San Mateo county, CA		 5 years
5 months		 13 41.7
(38.8)
78 15 and 3 by Dr. Flonase
San Mateo county, CA		 5 years
5 months		 13 41.7
(38.7)
79 High School Math #9 (revised) by kbseydel
San Mateo county, CA		 12 years 29 41.6
(40.2)
80 The World of Count Dracula by caccbag
San Mateo county, CA		 13 years
3 months		 32 41.5
(40.3)
81 Not a WarNinja but a Ninja Cache by flowerisland
San Mateo county, CA		 12 years
4 months		 30 41.3
(40.0)
82 Intermediate Sudoku Strategies: Ghost Numbers by kindredlaugh
San Mateo county, CA		 14 years
9 months		 36 41.0
(39.9)
83 The Future of Flavor by Dr. Flonase
San Mateo county, CA		 4 years
10 months		 12 40.7
(37.6)
84 Rock, Paper, Scissors! ✂ by Psychoticjesters
San Mateo county, CA		 13 years 32 40.7
(39.5)
85 OIAL 123: Lifetime by Dr. Flonase
San Mateo county, CA		 4 years
9 months		 12 40.0
(37.0)
86 High School Math #6 by kbseydel
San Mateo county, CA		 17 years
7 months		 44 40.0
(39.1)
87 Qu¡t throw¡ng me off! by Psychoticjesters
San Mateo county, CA		 12 years
4 months		 31 39.8
(38.6)
88 Olympic Marathon by caccbag
San Mateo county, CA		 13 years
10 months		 35 39.5
(38.4)
89 Find the Clues by beefezard
San Mateo county, CA		 12 years
2 months		 31 39.5
(38.2)
90 Yacht Rock Intros by Dr. Flonase
San Mateo county, CA		 5 years
1 month		 13 39.4
(36.6)
91 The Evil King by hrc333
San Mateo county, CA		 11 years
9 months		 30 39.4
(38.1)
92 WarNinjas-Copying Deadleys Puzzle! by WarNinjas
San Mateo county, CA		 12 years
1 month		 31 39.2
(38.0)
93 Portola Highlands Nights by trevie
San Mateo county, CA		 4 years
3 months		 11 38.9
(35.6)
94 WarNinjas Spaced Out!👽 by WarNinjas
San Mateo county, CA		 12 years
5 months		 32 38.8
(37.6)
95 Album Challenge #12: Kid A by hrc333
San Mateo county, CA		 11 years
2 months		 29 38.7
(37.4)
96 Full Eights by Dr. Flonase
San Mateo county, CA		 5 years
9 months		 15 38.7
(36.3)
97 The Spelling Police by caccbag
San Mateo county, CA		 14 years
7 months		 38 38.4
(37.4)
98 Crossword Clues 4 - Vowelburgers™ by Dr. Flonase
San Mateo county, CA		 5 years
4 months		 14 38.3
(35.7)
99 Equidistant Among Three by JuniorWences
San Mateo county, CA		 3 years
9 months		 10 38.1
(34.6)
100 007 Car Farewell by bthomas
San Mateo county, CA		 12 years
6 months		 33 38.1
(37.0)
Total records: 499, Page 1 of 5
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Statistics last updated Wednesday, 10 June 2026 05:28:55 Eastern Daylight Time
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