Loneliest Mystery/Unknowns
Contra Costa county
California

Total records: 688, Page 1 of 7
Rank Geocache Age Finds cCP
(nfCP)
1 Primary by Gealabhan
Contra Costa county, CA		 16 years
1 month		 1 1,611
(805)
2 Gatekeeping by Ampharos.
Contra Costa county, CA		 2 years
3 months		 1 227
(114)
3 Son of Bruce Lee by bassocantor
Contra Costa county, CA		 12 years
6 months		 7 179
(157)
4 Bel Prince of Fresh Air by ecrane
Contra Costa county, CA		 6 years
10 months		 5 137
(114)
5 William by J5 Crew
Contra Costa county, CA		 17 years
8 months		 13 136
(126)
6 Clifton Court Forebay by Alamogul
Contra Costa county, CA		 10 years
4 months		 8 130
(116)
7 Round Valley Challenge by Alamogul
Contra Costa county, CA		 11 years
6 months		 9 128
(115)
8 Across the USA by Alamogul
Contra Costa county, CA		 11 years
6 months		 9 128
(115)
9 Flower Garden (My Little Briones #2) by ddlatham
Contra Costa county, CA		 10 years
1 month		 8 126
(112)
10 Multi State Mega-Challenge by Alamogul
Contra Costa county, CA		 7 years 6 117
(100)
11 Las Trampas Challenge by Cachin' Casey
Contra Costa county, CA		 16 years
1 month		 14 115
(107)
12 14K and El Ovation (a Challenge) by bthomas
Contra Costa county, CA		 12 years
7 months		 11 115
(105)
13 Baseball Been Bery Berry Good to Me by mgallinatti
Contra Costa county, CA		 10 years
2 months		 9 113
(102)
14 4 Down (My Little Briones #1) by ddlatham
Contra Costa county, CA		 10 years
1 month		 9 113
(101)
15 The Bird's Nest by Alamogul
Contra Costa county, CA		 12 years
7 months		 12 105
(96.9)
16 DNS Cache by SnoWake
Contra Costa county, CA		 18 years
7 months		 18 104
(98.2)
17 Journey to the Land of Little People! by bassocantor
Contra Costa county, CA		 10 years
9 months		 11 97.9
(89.8)
18 Bruce Lee by Alamogul
Contra Costa county, CA		 18 years
6 months		 20 92.9
(88.5)
19 Bletchley Park - Colossus by ByeTheWay
Contra Costa county, CA		 7 years
4 months		 8 92.1
(81.9)
20 Where Is This Lovely Spot (Redux)? (MLB #3) by ddlatham
Contra Costa county, CA		 10 years
1 month		 11 91.8
(84.1)
21 The Long Journey Challenge by Alamogul
Contra Costa county, CA		 11 years
8 months		 13 90.1
(83.7)
22 Identity Crisis by Moe311
Contra Costa county, CA		 17 years
8 months		 20 88.7
(84.4)
23 Historic Caches of Contra Costa County Challenge by Alamogul
Contra Costa county, CA		 11 years
6 months		 13 88.6
(82.2)
24 #6 Bassoville Wild Animal Kingdom by bassocantor
Contra Costa county, CA		 7 years
10 months		 9 87.7
(78.9)
25 The 100/100 Club Challenge by Alamogul
Contra Costa county, CA		 15 years
8 months		 18 87.4
(82.8)
26 Rubber Ducky, you make bathtime lots of fun by Alamogul
Contra Costa county, CA		 15 years
10 months		 19 83.7
(79.5)
27 KCSearcher's Junction .029.029 #058 BONUS #2 by KCSearcher
Contra Costa county, CA		 4 years
2 months		 5 83.3
(69.5)
28 KCSearcher's Junction .029.029 #029 BONUS #1 by KCSearcher
Contra Costa county, CA		 5 years 6 83.3
(71.4)
29 Galapagos Vacation by Alamogul
Contra Costa county, CA		 18 years
1 month		 22 82.4
(78.8)
30 Tale of Two States by jellis
Contra Costa county, CA		 16 years
2 months		 20 81.1
(77.2)
31 COME BACK NIKKI, COME BACK! by bassocantor
Contra Costa county, CA		 8 years 10 80.7
(73.4)
32 Leap Cache by Alamogul
Contra Costa county, CA		 18 years
4 months		 23 80.0
(76.7)
33 The Crossing by Alamogul
Contra Costa county, CA		 18 years 23 78.5
(75.2)
34 Mt. Diablo NE Side by Mt Diablo Hiker
Contra Costa county, CA		 18 years
8 months		 24 78.1
(75.0)
35 Catch the Spirit by Kryptonite
Contra Costa county, CA		 19 years
2 months		 25 76.9
(73.9)
36 Shrek, the Geocache by Alamogul
Contra Costa county, CA		 15 years
9 months		 21 75.3
(71.8)
37 Morgan Territory Challenge by Alamogul
Contra Costa county, CA		 16 years
2 months		 22 73.6
(70.4)
38 Bear the Distance Challenge by Bear Creek Cachers
Contra Costa county, CA		 13 years
10 months		 19 72.9
(69.3)
39 The Periodic Table Final Cache by BerkeleyBoomers
Contra Costa county, CA		 15 years
2 months		 21 72.5
(69.2)
40 It's a Big Universe Out There by greenusagi
Contra Costa county, CA		 8 years
4 months		 12 69.9
(64.5)
41 Pnr - Pioneer 11 (February 2012) by KCSearcher
Contra Costa county, CA		 14 years
5 months		 21 68.9
(65.7)
42 Take Up the Runes by FiveEyes
Contra Costa county, CA		 16 years
5 months		 24 68.5
(65.8)
43 Seaview Benches by riobrl
Contra Costa county, CA		 16 years
3 months		 24 68.0
(65.3)
44 California's Oldies but Goodies Challenge by 4wheeler
Contra Costa county, CA		 15 years
7 months		 23 67.8
(64.9)
45 And the Oscar Goes To... by bluewarble
Contra Costa county, CA		 3 years
4 months		 5 67.7
(56.4)
45 Franchise Players by bluewarble
Contra Costa county, CA		 3 years
4 months		 5 67.7
(56.4)
47 Spell Round Valley Challenge by Alamogul
Contra Costa county, CA		 11 years
5 months		 17 67.3
(63.6)
48 The Court Jester by J5 Crew
Contra Costa county, CA		 15 years
5 months		 23 67.2
(64.4)
49 SJ-10-4 by Alamogul
Contra Costa county, CA		 14 years
8 months		 22 66.9
(64.0)
50 Compound Words (My Little Briones #4) by ddlatham
Contra Costa county, CA		 9 years
4 months		 14 66.8
(62.3)
51 Fifty Parks Challenge by MelodiousM
Contra Costa county, CA		 15 years
11 months		 24 66.6
(63.9)
52 Musical Folly by opted-out user
Contra Costa county, CA		 18 years
7 months		 28 66.4
(64.1)
53 The Big Quacker by Alamogul
Contra Costa county, CA		 15 years
10 months		 24 66.3
(63.6)
54 Nothing by Alamogul
Contra Costa county, CA		 17 years
9 months		 27 65.7
(63.4)
55 In The Heels of Alamogul #24 by Alamogul
Contra Costa county, CA		 9 years
2 months		 14 65.7
(61.3)
56 Ents, the Herder of Trees by jagerdorf
Contra Costa county, CA		 9 years
10 months		 15 65.6
(61.5)
57 Never Give Up - Never Surrender by MartianRabbit
Contra Costa county, CA		 20 years
8 months		 32 64.7
(62.7)
58 4-7 (Four dash Seven Mystery) by Alamogul
Contra Costa county, CA		 14 years
1 month		 22 64.2
(61.4)
59 The Jack: Northern Alliance by GeoRedheads
Contra Costa county, CA		 15 years
10 months		 25 63.6
(61.1)
60 FUGITIVE ON THE NONAME TRAIL! by bassocantor
Contra Costa county, CA		 8 years
1 month		 13 62.7
(58.2)
61 Let It Rain by Moe311
Contra Costa county, CA		 12 years
3 months		 20 61.3
(58.4)
62 A Drizzling Puzzle by snakedsi007
Contra Costa county, CA		 14 years
11 months		 25 60.0
(57.7)
63 KC's Lost Glove by Alamogul
Contra Costa county, CA		 14 years
3 months		 24 59.5
(57.2)
64 Orinda Overlook by rparriot
Contra Costa county, CA		 20 years
4 months		 35 58.2
(56.6)
65 100 Movies, 100 Quotes, 100 Numbers by dgreno
Contra Costa county, CA		 19 years
2 months		 33 58.1
(56.4)
66 The Minions Stash by Dalphin
Contra Costa county, CA		 11 years 19 58.0
(55.1)
67 The BANNED Technique! Catapult 4.0 by bassocantor
Contra Costa county, CA		 8 years
1 month		 14 57.7
(53.9)
68 The Super Bowl Puzzler Cache by Dasgrendel
Contra Costa county, CA		 15 years
5 months		 27 57.3
(55.3)
69 Modern Art by Moe311
Contra Costa county, CA		 18 years
3 months		 32 57.0
(55.3)
70 Morgana's Rub-a-Dub-Dub by Alamogul
Contra Costa county, CA		 10 years
9 months		 19 57.0
(54.1)
71 Who am I? by diablobusters
Contra Costa county, CA		 14 years
1 month		 25 56.5
(54.3)
72 Wild Creatures by bassocantor
Contra Costa county, CA		 7 years
10 months		 14 56.4
(52.6)
73 Mike Rowe Cache #2 by Alamogul
Contra Costa county, CA		 18 years 32 56.4
(54.6)
74 My First Topo by SnoWake
Contra Costa county, CA		 18 years
4 months		 33 55.8
(54.1)
75 Cavendish by Moe311
Contra Costa county, CA		 18 years
4 months		 33 55.6
(54.0)
76 My cow, Your cow, What cow ? by flowerisland
Contra Costa county, CA		 10 years
6 months		 19 55.3
(52.5)
77 Wired to Eat by bassocantor
Contra Costa county, CA		 9 years
4 months		 17 55.1
(52.1)
78 Another Round (Valley) on Us by Alamogul
Contra Costa county, CA		 11 years
6 months		 21 55.0
(52.5)
79 A QUACKING-GOOD ADVENTURE! by bassocantor
Contra Costa county, CA		 12 years
6 months		 23 54.4
(52.2)
80 Stuck In The Middle With You by SnoWake
Contra Costa county, CA		 16 years
10 months		 31 54.3
(52.6)
81 Treasures of Lamorinda: More La by Alamogul
Contra Costa county, CA		 21 years
5 months		 40 53.7
(52.4)
82 Magical Mystery Tour by Alamogul
Contra Costa county, CA		 14 years
2 months		 27 52.7
(50.9)
83 7 ( Seven Mystery ) by diablobusters
Contra Costa county, CA		 14 years
2 months		 27 52.7
(50.8)
84 Harmony's Easter Egg by Harmony Baby
Contra Costa county, CA		 6 years
3 months		 12 52.5
(48.4)
85 I Love Thai Food! by Shrektrician
Contra Costa county, CA		 5 years
8 months		 11 52.1
(47.8)
86 Visually Impaired by Climber5.11
Contra Costa county, CA		 18 years
6 months		 36 51.5
(50.2)
87 Elliott by 4wheeler
Contra Costa county, CA		 14 years
11 months		 29 51.5
(49.8)
88 Ed, I Hide by Moe311
Contra Costa county, CA		 18 years
9 months		 37 50.9
(49.5)
89 5 Suns or 5 Sons by jagerdorf
Contra Costa county, CA		 6 years
7 months		 13 50.8
(47.1)
90 Beyond Question by Alamogul
Contra Costa county, CA		 14 years
1 month		 28 50.4
(48.7)
91 Grapevine Challenge by Alamogul
Contra Costa county, CA		 12 years
4 months		 25 49.5
(47.6)
92 4 ( Four Mystery ) by diablobusters
Contra Costa county, CA		 14 years
2 months		 29 49.0
(47.3)
93 Who is the fairest of all by flowerisland
Contra Costa county, CA		 14 years
7 months		 30 48.8
(47.2)
94 Assault on Briones – Grand Finale by GeoRedheads
Contra Costa county, CA		 13 years
11 months		 29 48.2
(46.6)
95 Round Valley Panorama by Alamogul
Contra Costa county, CA		 11 years
6 months		 24 48.1
(46.2)
96 Amulet by kbrece
Contra Costa county, CA		 23 years
1 month		 48 48.1
(47.1)
97 DEAD BATTERY by bassocantor
Contra Costa county, CA		 8 years
1 month		 17 48.0
(45.3)
98 SIENNA CHESTNUT LUVS GEMDAS by CacheHound2002
Contra Costa county, CA		 11 years
10 months		 25 47.6
(45.8)
99 Basso Certificate in Wilderness Survival by bassocantor
Contra Costa county, CA		 8 years 17 47.5
(44.9)
100 I Love PiE! by Shrektrician
Contra Costa county, CA		 5 years
8 months		 12 47.5
(43.9)
Total records: 688, Page 1 of 7
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Statistics last updated Wednesday, 29 July 2026 05:27:34 Eastern Daylight Time
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