Loneliest Letterbox Hybrids
San Mateo county
California

Total records: 24
Rank Geocache Age Finds cCP
(nfCP)
1 ⛏ Quartz Crystal Mine: The Letterbox of Legend 💎 by Psychoticjesters
San Mateo county, CA		 11 years
3 months		 41 27.5
(26.8)
2 WarNinjas- Tree for HRC333 🌳 by WarNinjas
San Mateo county, CA		 12 years
3 months		 68 18.0
(17.8)
3 WarNinjas Hang 10! 🏄 by WarNinjas
San Mateo county, CA		 11 years
6 months		 66 17.5
(17.2)
4 WarNinjas Monkey business LB by WarNinjas
San Mateo county, CA		 10 years
3 months		 61 16.9
(16.6)
5 WarNinjas Stairway to FrogBox Heaven by WarNinjas
San Mateo county, CA		 13 years
6 months		 82 16.5
(16.3)
6 Walk the Plank to WarNinjas hiding spot! by WarNinjas
San Mateo county, CA		 9 years
11 months		 63 15.9
(15.6)
7 Cañada Series #2 LB by Dr. Flonase
San Mateo county, CA		 3 years
4 months		 24 14.1
(13.5)
8 Huddart Park(ing) Redux LB by Dr. Flonase
San Mateo county, CA		 3 years
2 months		 23 14.0
(13.4)
9 Letters to Shore - Dolphin by Dr. Flonase
San Mateo county, CA		 3 years
10 months		 30 13.0
(12.6)
10 Along the Hetch-Hetchy Trail by Dr. Flonase
San Mateo county, CA		 8 years
11 months		 84 10.7
(10.6)
11 Letters to Shore - Marlin by Dr. Flonase
San Mateo county, CA		 3 years
10 months		 37 10.5
(10.2)
12 ADLC - Finale by Dr. Flonase
San Mateo county, CA		 1 year
11 months		 21 9.17
(8.75)
13 ADLC - Pit of Nothingness by Dr. Flonase
San Mateo county, CA		 1 year
11 months		 24 8.02
(7.70)
14 KCSearcher's Feb29 2020 #R26 Experiment by KCSearcher
San Mateo county, CA		 6 years
6 months		 93 6.99
(6.92)
15 ADLC - Hetch Hetchy by Dr. Flonase
San Mateo county, CA		 1 year
11 months		 33 5.83
(5.66)
16 ADLC - START HERE - Seven Stripes by Dr. Flonase
San Mateo county, CA		 1 year
11 months		 34 5.66
(5.50)
17 Take your pills! by Dr. Flonase
San Mateo county, CA		 8 years
5 months		 160 5.29
(5.25)
18 ADLC - Hilltop by Dr. Flonase
San Mateo county, CA		 1 year
11 months		 38 5.07
(4.94)
19 ADLC - Clear Skies by Dr. Flonase
San Mateo county, CA		 1 year
11 months		 40 4.81
(4.69)
19 ADLC - Lupin' Around by Dr. Flonase
San Mateo county, CA		 1 year
11 months		 40 4.81
(4.69)
19 ADLC - Power Source by Dr. Flonase
San Mateo county, CA		 1 year
11 months		 40 4.81
(4.69)
22 ADLC - Please Share My Umbrella by Dr. Flonase
San Mateo county, CA		 1 year
11 months		 43 4.48
(4.37)
23 ADLC - City Limits by Dr. Flonase
San Mateo county, CA		 1 year
11 months		 44 4.37
(4.28)
24 Bee-Hind the Scenes by b_aldridge1017
San Mateo county, CA		 11 months 29 3.34
(3.23)
Total records: 24
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Statistics last updated Tuesday, 01 September 2026 04:29:12 Eastern Daylight Time
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