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
4 months		 1 1,636
(818)
2 Gatekeeping by Ampharos.
Contra Costa county, CA		 2 years
6 months		 1 252
(126)
3 Son of Bruce Lee by bassocantor
Contra Costa county, CA		 12 years
9 months		 7 183
(160)
4 Bel Prince of Fresh Air by ecrane
Contra Costa county, CA		 7 years
1 month		 5 142
(118)
5 William by J5 Crew
Contra Costa county, CA		 17 years
11 months		 13 138
(128)
6 Clifton Court Forebay by Alamogul
Contra Costa county, CA		 10 years
7 months		 8 133
(118)
7 Round Valley Challenge by Alamogul
Contra Costa county, CA		 11 years
9 months		 9 131
(118)
8 Across the USA by Alamogul
Contra Costa county, CA		 11 years
9 months		 9 131
(118)
9 Flower Garden (My Little Briones #2) by ddlatham
Contra Costa county, CA		 10 years
4 months		 8 129
(115)
10 Multi State Mega-Challenge by Alamogul
Contra Costa county, CA		 7 years
3 months		 6 121
(104)
11 14K and El Ovation (a Challenge) by bthomas
Contra Costa county, CA		 12 years
10 months		 11 117
(107)
12 Las Trampas Challenge by Cachin' Casey
Contra Costa county, CA		 16 years
4 months		 14 117
(109)
13 4 Down (My Little Briones #1) by ddlatham
Contra Costa county, CA		 10 years
4 months		 9 115
(104)
14 The Bird's Nest by Alamogul
Contra Costa county, CA		 12 years
10 months		 12 107
(98.8)
15 DNS Cache by SnoWake
Contra Costa county, CA		 18 years
10 months		 18 105
(99.5)
16 Baseball Been Bery Berry Good to Me by mgallinatti
Contra Costa county, CA		 10 years
5 months		 10 105
(95.0)
17 Journey to the Land of Little People! by bassocantor
Contra Costa county, CA		 11 years 11 100
(91.9)
18 Historic Caches of Contra Costa County Challenge by Alamogul
Contra Costa county, CA		 11 years
9 months		 12 98.0
(90.5)
19 Bletchley Park - Colossus by ByeTheWay
Contra Costa county, CA		 7 years
7 months		 8 95.3
(84.7)
20 Bruce Lee by Alamogul
Contra Costa county, CA		 18 years
9 months		 20 94.1
(89.7)
21 Where Is This Lovely Spot (Redux)? (MLB #3) by ddlatham
Contra Costa county, CA		 10 years
4 months		 11 94.1
(86.2)
22 The Long Journey Challenge by Alamogul
Contra Costa county, CA		 11 years
11 months		 13 92.1
(85.5)
23 #6 Bassoville Wild Animal Kingdom by bassocantor
Contra Costa county, CA		 8 years
1 month		 9 90.5
(81.4)
24 The 100/100 Club Challenge by Alamogul
Contra Costa county, CA		 15 years
11 months		 18 88.8
(84.2)
25 KCSearcher's Junction .029.029 #058 BONUS #2 by KCSearcher
Contra Costa county, CA		 4 years
5 months		 5 88.4
(73.6)
26 Identity Crisis by Moe311
Contra Costa county, CA		 17 years
11 months		 21 85.6
(81.7)
27 Rubber Ducky, you make bathtime lots of fun by Alamogul
Contra Costa county, CA		 16 years
1 month		 19 85.0
(80.8)
28 COME BACK NIKKI, COME BACK! by bassocantor
Contra Costa county, CA		 8 years
3 months		 10 83.3
(75.7)
29 Leap Cache by Alamogul
Contra Costa county, CA		 18 years
7 months		 23 81.1
(77.7)
30 Galapagos Vacation by Alamogul
Contra Costa county, CA		 18 years
4 months		 23 79.9
(76.6)
31 The Crossing by Alamogul
Contra Costa county, CA		 18 years
3 months		 23 79.6
(76.3)
32 Mt. Diablo NE Side by Mt Diablo Hiker
Contra Costa county, CA		 18 years
11 months		 24 79.1
(76.0)
33 Catch the Spirit by Kryptonite
Contra Costa county, CA		 19 years
5 months		 25 77.9
(74.9)
34 Shrek, the Geocache by Alamogul
Contra Costa county, CA		 16 years 21 76.5
(73.0)
35 KCSearcher's Junction .029.029 #029 BONUS #1 by KCSearcher
Contra Costa county, CA		 5 years
3 months		 7 75.0
(65.6)
36 Tale of Two States by jellis
Contra Costa county, CA		 16 years
5 months		 22 74.9
(71.6)
37 Morgan Territory Challenge by Alamogul
Contra Costa county, CA		 16 years
5 months		 22 74.7
(71.5)
38 Bear the Distance Challenge by Bear Creek Cachers
Contra Costa county, CA		 14 years
1 month		 19 74.2
(70.5)
39 The Periodic Table Final Cache by BerkeleyBoomers
Contra Costa county, CA		 15 years
5 months		 21 73.7
(70.4)
40 And the Oscar Goes To... by bluewarble
Contra Costa county, CA		 3 years
7 months		 5 72.8
(60.6)
40 Franchise Players by bluewarble
Contra Costa county, CA		 3 years
7 months		 5 72.8
(60.6)
42 It's a Big Universe Out There by greenusagi
Contra Costa county, CA		 8 years
7 months		 12 72.0
(66.4)
43 Seaview Benches by riobrl
Contra Costa county, CA		 16 years
6 months		 24 69.1
(66.3)
44 California's Oldies but Goodies Challenge by 4wheeler
Contra Costa county, CA		 15 years
10 months		 23 68.9
(66.0)
45 Spell Round Valley Challenge by Alamogul
Contra Costa county, CA		 11 years
8 months		 17 68.8
(65.0)
46 Compound Words (My Little Briones #4) by ddlatham
Contra Costa county, CA		 9 years
7 months		 14 68.6
(64.0)
47 The Court Jester by J5 Crew
Contra Costa county, CA		 15 years
8 months		 23 68.3
(65.4)
48 Fifty Parks Challenge by MelodiousM
Contra Costa county, CA		 16 years
2 months		 24 67.7
(65.0)
49 In The Heels of Alamogul #24 by Alamogul
Contra Costa county, CA		 9 years
5 months		 14 67.5
(63.0)
50 Ents, the Herder of Trees by jagerdorf
Contra Costa county, CA		 10 years
1 month		 15 67.3
(63.1)
51 Pnr - Pioneer 11 (February 2012) by KCSearcher
Contra Costa county, CA		 14 years
8 months		 22 66.9
(64.0)
52 Take Up the Runes by FiveEyes
Contra Costa county, CA		 16 years
8 months		 25 66.8
(64.2)
53 Nothing by Alamogul
Contra Costa county, CA		 18 years 27 66.7
(64.3)
54 Never Give Up - Never Surrender by MartianRabbit
Contra Costa county, CA		 20 years
11 months		 32 65.5
(63.5)
55 4-7 (Four dash Seven Mystery) by Alamogul
Contra Costa county, CA		 14 years
4 months		 22 65.3
(62.5)
56 SJ-10-4 by Alamogul
Contra Costa county, CA		 14 years
11 months		 23 65.1
(62.4)
57 Musical Folly by opted-out user
Contra Costa county, CA		 18 years
10 months		 29 65.0
(62.8)
58 FUGITIVE ON THE NONAME TRAIL! by bassocantor
Contra Costa county, CA		 8 years
4 months		 13 64.6
(60.0)
59 The Jack: Northern Alliance by GeoRedheads
Contra Costa county, CA		 16 years
1 month		 25 64.6
(62.1)
60 Let It Rain by Moe311
Contra Costa county, CA		 12 years
6 months		 20 62.5
(59.6)
61 The Big Quacker by Alamogul
Contra Costa county, CA		 16 years
1 month		 26 62.1
(59.8)
62 A Drizzling Puzzle by snakedsi007
Contra Costa county, CA		 15 years
2 months		 25 61.0
(58.6)
63 Orinda Overlook by rparriot
Contra Costa county, CA		 20 years
7 months		 34 60.7
(58.9)
64 KC's Lost Glove by Alamogul
Contra Costa county, CA		 14 years
6 months		 24 60.6
(58.2)
65 The BANNED Technique! Catapult 4.0 by bassocantor
Contra Costa county, CA		 8 years
4 months		 14 59.5
(55.6)
66 100 Movies, 100 Quotes, 100 Numbers by dgreno
Contra Costa county, CA		 19 years
5 months		 33 58.9
(57.2)
67 Morgana's Rub-a-Dub-Dub by Alamogul
Contra Costa county, CA		 11 years 19 58.3
(55.4)
68 The Super Bowl Puzzler Cache by Dasgrendel
Contra Costa county, CA		 15 years
8 months		 27 58.3
(56.2)
69 Wild Creatures by bassocantor
Contra Costa county, CA		 8 years
1 month		 14 58.2
(54.3)
70 Who am I? by diablobusters
Contra Costa county, CA		 14 years
4 months		 25 57.5
(55.3)
71 Wired to Eat by bassocantor
Contra Costa county, CA		 9 years
7 months		 17 56.6
(53.5)
72 My cow, Your cow, What cow ? by flowerisland
Contra Costa county, CA		 10 years
9 months		 19 56.6
(53.8)
73 Cavendish by Moe311
Contra Costa county, CA		 18 years
7 months		 33 56.4
(54.7)
74 Another Round (Valley) on Us by Alamogul
Contra Costa county, CA		 11 years
9 months		 21 56.2
(53.6)
75 Modern Art by Moe311
Contra Costa county, CA		 18 years
6 months		 33 56.1
(54.4)
76 A QUACKING-GOOD ADVENTURE! by bassocantor
Contra Costa county, CA		 12 years
9 months		 23 55.5
(53.2)
77 Mike Rowe Cache #2 by Alamogul
Contra Costa county, CA		 18 years
3 months		 33 55.4
(53.8)
78 Stuck In The Middle With You by SnoWake
Contra Costa county, CA		 17 years
1 month		 31 55.1
(53.4)
79 My First Topo by SnoWake
Contra Costa county, CA		 18 years
7 months		 34 54.9
(53.3)
80 Harmony's Easter Egg by Harmony Baby
Contra Costa county, CA		 6 years
6 months		 12 54.6
(50.4)
81 I Love Thai Food! by Shrektrician
Contra Costa county, CA		 5 years
11 months		 11 54.4
(49.9)
82 Treasures of Lamorinda: More La by Alamogul
Contra Costa county, CA		 21 years
8 months		 40 54.3
(53.0)
83 Magical Mystery Tour by Alamogul
Contra Costa county, CA		 14 years
5 months		 27 53.7
(51.8)
84 7 ( Seven Mystery ) by diablobusters
Contra Costa county, CA		 14 years
5 months		 27 53.6
(51.7)
85 5 Suns or 5 Sons by jagerdorf
Contra Costa county, CA		 6 years
10 months		 13 52.7
(48.9)
86 Opium 💿 by Ampharos.
Contra Costa county, CA		 2 years
1 month		 4 52.4
(41.9)
87 Elliott by 4wheeler
Contra Costa county, CA		 15 years
2 months		 29 52.3
(50.6)
88 Ed, I Hide by Moe311
Contra Costa county, CA		 19 years 37 51.5
(50.2)
89 Beyond Question by Alamogul
Contra Costa county, CA		 14 years
4 months		 28 51.3
(49.6)
90 Visually Impaired by Climber5.11
Contra Costa county, CA		 18 years
9 months		 37 50.8
(49.5)
91 Grapevine Challenge by Alamogul
Contra Costa county, CA		 12 years
7 months		 25 50.5
(48.6)
92 4 ( Four Mystery ) by diablobusters
Contra Costa county, CA		 14 years
5 months		 29 49.8
(48.2)
93 Amulet by kbrece
Contra Costa county, CA		 23 years
4 months		 47 49.7
(48.6)
94 Who is the fairest of all by flowerisland
Contra Costa county, CA		 14 years
10 months		 30 49.6
(48.0)
95 I Love PiE! by Shrektrician
Contra Costa county, CA		 5 years
11 months		 12 49.6
(45.8)
96 DEAD BATTERY by bassocantor
Contra Costa county, CA		 8 years
4 months		 17 49.5
(46.7)
97 Pipe Up, Pipe Down by nrabinowitz
Contra Costa county, CA		 11 months 2 49.3
(32.9)
98 Round Valley Panorama by Alamogul
Contra Costa county, CA		 11 years
9 months		 24 49.2
(47.2)
99 Assault on Briones – Grand Finale by GeoRedheads
Contra Costa county, CA		 14 years
2 months		 29 49.0
(47.4)
100 Basso Certificate in Wilderness Survival by bassocantor
Contra Costa county, CA		 8 years
3 months		 17 49.0
(46.3)
Total records: 688, Page 1 of 7
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Statistics last updated Thursday, 29 October 2026 04:30:50 Eastern Daylight Time
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