Loneliest Mystery/Unknowns
Contra Costa county
California

Total records: 689, Page 1 of 7
Rank Geocache Age Finds cCP
(nfCP)
1 Primary by Gealabhan
Contra Costa county, CA		 15 years
11 months		 1 1,598
(799)
2 Gatekeeping by Ampharos.
Contra Costa county, CA		 2 years
1 month		 1 214
(107)
3 Son of Bruce Lee by bassocantor
Contra Costa county, CA		 12 years
5 months		 7 178
(155)
4 William by J5 Crew
Contra Costa county, CA		 17 years
6 months		 13 135
(126)
5 Bel Prince of Fresh Air by ecrane
Contra Costa county, CA		 6 years
8 months		 5 134
(112)
6 Clifton Court Forebay by Alamogul
Contra Costa county, CA		 10 years
3 months		 8 128
(114)
7 Round Valley Challenge by Alamogul
Contra Costa county, CA		 11 years
4 months		 9 127
(114)
8 Across the USA by Alamogul
Contra Costa county, CA		 11 years
4 months		 9 127
(114)
9 4 Down (My Little Briones #1) by ddlatham
Contra Costa county, CA		 10 years 8 125
(111)
10 Flower Garden (My Little Briones #2) by ddlatham
Contra Costa county, CA		 9 years
11 months		 8 125
(111)
11 Multi State Mega-Challenge by Alamogul
Contra Costa county, CA		 6 years
10 months		 6 115
(98.5)
12 Las Trampas Challenge by Cachin' Casey
Contra Costa county, CA		 15 years
11 months		 14 114
(106)
13 14K and El Ovation (a Challenge) by bthomas
Contra Costa county, CA		 12 years
5 months		 11 114
(104)
14 Baseball Been Bery Berry Good to Me by mgallinatti
Contra Costa county, CA		 10 years 9 112
(101)
15 The Bird's Nest by Alamogul
Contra Costa county, CA		 12 years
5 months		 12 104
(95.9)
16 DNS Cache by SnoWake
Contra Costa county, CA		 18 years
6 months		 18 103
(97.5)
17 Journey to the Land of Little People! by bassocantor
Contra Costa county, CA		 10 years
7 months		 11 96.7
(88.7)
18 Bruce Lee by Alamogul
Contra Costa county, CA		 18 years
5 months		 20 92.2
(87.8)
19 Where Is This Lovely Spot (Redux)? (MLB #3) by ddlatham
Contra Costa county, CA		 9 years
11 months		 11 90.6
(83.0)
20 Bletchley Park - Colossus by ByeTheWay
Contra Costa county, CA		 7 years
2 months		 8 90.5
(80.4)
21 The Long Journey Challenge by Alamogul
Contra Costa county, CA		 11 years
7 months		 13 89.1
(82.7)
22 Identity Crisis by Moe311
Contra Costa county, CA		 17 years
7 months		 20 88.0
(83.8)
23 Historic Caches of Contra Costa County Challenge by Alamogul
Contra Costa county, CA		 11 years
4 months		 13 87.5
(81.3)
24 The 100/100 Club Challenge by Alamogul
Contra Costa county, CA		 15 years
7 months		 18 86.7
(82.1)
25 #6 Bassoville Wild Animal Kingdom by bassocantor
Contra Costa county, CA		 7 years
9 months		 9 86.2
(77.6)
26 Rubber Ducky, you make bathtime lots of fun by Alamogul
Contra Costa county, CA		 15 years
9 months		 19 83.0
(78.9)
27 Galapagos Vacation by Alamogul
Contra Costa county, CA		 17 years
11 months		 22 81.8
(78.2)
28 KCSearcher's Junction .029.029 #029 BONUS #1 by KCSearcher
Contra Costa county, CA		 4 years
10 months		 6 81.1
(69.5)
29 KCSearcher's Junction .029.029 #058 BONUS #2 by KCSearcher
Contra Costa county, CA		 4 years 5 80.7
(67.3)
30 Tale of Two States by jellis
Contra Costa county, CA		 16 years
1 month		 20 80.5
(76.6)
31 Catch the Spirit by Kryptonite
Contra Costa county, CA		 19 years
1 month		 24 79.5
(76.3)
32 Leap Cache by Alamogul
Contra Costa county, CA		 18 years
3 months		 23 79.5
(76.1)
33 COME BACK NIKKI, COME BACK! by bassocantor
Contra Costa county, CA		 7 years
11 months		 10 79.4
(72.2)
34 The Crossing by Alamogul
Contra Costa county, CA		 17 years
11 months		 23 77.9
(74.7)
35 Mt. Diablo NE Side by Mt Diablo Hiker
Contra Costa county, CA		 18 years
7 months		 24 77.5
(74.4)
36 Shrek, the Geocache by Alamogul
Contra Costa county, CA		 15 years
8 months		 21 74.6
(71.2)
37 Morgan Territory Challenge by Alamogul
Contra Costa county, CA		 16 years 22 73.0
(69.8)
38 Bear the Distance Challenge by Bear Creek Cachers
Contra Costa county, CA		 13 years
8 months		 19 72.2
(68.6)
39 The Periodic Table Final Cache by BerkeleyBoomers
Contra Costa county, CA		 15 years
1 month		 21 71.9
(68.6)
40 Compound Words (My Little Briones #4) by ddlatham
Contra Costa county, CA		 9 years
2 months		 13 70.9
(65.8)
41 It's a Big Universe Out There by greenusagi
Contra Costa county, CA		 8 years
3 months		 12 68.8
(63.5)
42 Pnr - Pioneer 11 (February 2012) by KCSearcher
Contra Costa county, CA		 14 years
4 months		 21 68.2
(65.1)
43 Take Up the Runes by FiveEyes
Contra Costa county, CA		 16 years
3 months		 24 68.0
(65.3)
44 Seaview Benches by riobrl
Contra Costa county, CA		 16 years
2 months		 24 67.5
(64.8)
45 California's Oldies but Goodies Challenge by 4wheeler
Contra Costa county, CA		 15 years
5 months		 23 67.2
(64.4)
46 The Court Jester by J5 Crew
Contra Costa county, CA		 15 years
3 months		 23 66.6
(63.8)
47 Spell Round Valley Challenge by Alamogul
Contra Costa county, CA		 11 years
3 months		 17 66.5
(62.8)
48 SJ-10-4 by Alamogul
Contra Costa county, CA		 14 years
7 months		 22 66.3
(63.4)
49 Fifty Parks Challenge by MelodiousM
Contra Costa county, CA		 15 years
10 months		 24 66.1
(63.4)
50 Musical Folly by opted-out user
Contra Costa county, CA		 18 years
5 months		 28 65.9
(63.6)
51 The Big Quacker by Alamogul
Contra Costa county, CA		 15 years
9 months		 24 65.7
(63.1)
52 Nothing by Alamogul
Contra Costa county, CA		 17 years
7 months		 27 65.2
(62.9)
53 And the Oscar Goes To... by bluewarble
Contra Costa county, CA		 3 years
3 months		 5 65.1
(54.3)
53 Franchise Players by bluewarble
Contra Costa county, CA		 3 years
3 months		 5 65.1
(54.3)
55 In The Heels of Alamogul #24 by Alamogul
Contra Costa county, CA		 9 years 14 64.8
(60.4)
56 Ents, the Herder of Trees by jagerdorf
Contra Costa county, CA		 9 years
8 months		 15 64.7
(60.7)
57 Never Give Up - Never Surrender by MartianRabbit
Contra Costa county, CA		 20 years
6 months		 32 64.3
(62.3)
58 Let It Rain by Moe311
Contra Costa county, CA		 12 years
1 month		 19 63.8
(60.6)
59 4-7 (Four dash Seven Mystery) by Alamogul
Contra Costa county, CA		 13 years
11 months		 22 63.6
(60.8)
60 The Jack: Northern Alliance by GeoRedheads
Contra Costa county, CA		 15 years
9 months		 25 63.1
(60.6)
61 I Love Thai Food! by Shrektrician
Contra Costa county, CA		 5 years
7 months		 9 62.2
(56.0)
62 FUGITIVE ON THE NONAME TRAIL! by bassocantor
Contra Costa county, CA		 8 years 13 61.7
(57.3)
63 100 Movies, 100 Quotes, 100 Numbers by dgreno
Contra Costa county, CA		 19 years 32 59.5
(57.7)
64 A Drizzling Puzzle by snakedsi007
Contra Costa county, CA		 14 years
10 months		 25 59.4
(57.2)
65 KC's Lost Glove by Alamogul
Contra Costa county, CA		 14 years
1 month		 24 59.0
(56.6)
66 Orinda Overlook by rparriot
Contra Costa county, CA		 20 years
2 months		 35 57.8
(56.2)
67 The Minions Stash by Dalphin
Contra Costa county, CA		 10 years
10 months		 19 57.3
(54.4)
68 The Super Bowl Puzzler Cache by Dasgrendel
Contra Costa county, CA		 15 years
4 months		 27 56.8
(54.8)
69 The BANNED Technique! Catapult 4.0 by bassocantor
Contra Costa county, CA		 7 years
11 months		 14 56.8
(53.0)
70 Modern Art by Moe311
Contra Costa county, CA		 18 years
1 month		 32 56.6
(54.9)
71 Morgana's Rub-a-Dub-Dub by Alamogul
Contra Costa county, CA		 10 years
8 months		 19 56.3
(53.5)
72 Mike Rowe Cache #2 by Alamogul
Contra Costa county, CA		 17 years
10 months		 32 55.9
(54.3)
73 Who am I? by diablobusters
Contra Costa county, CA		 13 years
11 months		 25 55.9
(53.8)
74 Wild Creatures by bassocantor
Contra Costa county, CA		 7 years
9 months		 14 55.5
(51.8)
75 My First Topo by SnoWake
Contra Costa county, CA		 18 years
3 months		 33 55.4
(53.7)
76 Cavendish by Moe311
Contra Costa county, CA		 18 years
2 months		 33 55.2
(53.6)
77 My cow, Your cow, What cow ? by flowerisland
Contra Costa county, CA		 10 years
4 months		 19 54.6
(51.9)
78 Wired to Eat by bassocantor
Contra Costa county, CA		 9 years
2 months		 17 54.4
(51.3)
79 Another Round (Valley) on Us by Alamogul
Contra Costa county, CA		 11 years
5 months		 21 54.4
(51.9)
80 Stuck In The Middle With You by SnoWake
Contra Costa county, CA		 16 years
8 months		 31 53.9
(52.2)
81 A QUACKING-GOOD ADVENTURE! by bassocantor
Contra Costa county, CA		 12 years
4 months		 23 53.9
(51.6)
82 Treasures of Lamorinda: More La by Alamogul
Contra Costa county, CA		 21 years
4 months		 40 53.4
(52.1)
83 Magical Mystery Tour by Alamogul
Contra Costa county, CA		 14 years
1 month		 27 52.3
(50.4)
84 7 ( Seven Mystery ) by diablobusters
Contra Costa county, CA		 14 years
1 month		 27 52.2
(50.3)
85 Harmony's Easter Egg by Harmony Baby
Contra Costa county, CA		 6 years
1 month		 12 51.4
(47.4)
86 Visually Impaired by Climber5.11
Contra Costa county, CA		 18 years
5 months		 36 51.2
(49.8)
87 Elliott by 4wheeler
Contra Costa county, CA		 14 years
9 months		 29 51.0
(49.3)
88 I Love PiE! by Shrektrician
Contra Costa county, CA		 5 years
6 months		 11 50.7
(46.4)
89 Ed, I Hide by Moe311
Contra Costa county, CA		 18 years
8 months		 37 50.5
(49.2)
90 Beyond Question by Alamogul
Contra Costa county, CA		 13 years
11 months		 28 50.0
(48.2)
91 5 Suns or 5 Sons by jagerdorf
Contra Costa county, CA		 6 years
5 months		 13 49.8
(46.2)
92 Rabbit, Goat & Bear by ByeTheWay
Contra Costa county, CA		 14 years
3 months		 29 49.2
(47.6)
93 Grapevine Challenge by Alamogul
Contra Costa county, CA		 12 years
2 months		 25 49.0
(47.1)
94 4 ( Four Mystery ) by diablobusters
Contra Costa county, CA		 14 years 29 48.5
(46.9)
95 Who is the fairest of all by flowerisland
Contra Costa county, CA		 14 years
6 months		 30 48.4
(46.8)
96 Amulet by kbrece
Contra Costa county, CA		 22 years
11 months		 48 47.8
(46.9)
97 Assault on Briones – Grand Finale by GeoRedheads
Contra Costa county, CA		 13 years
10 months		 29 47.7
(46.1)
98 Round Valley Panorama by Alamogul
Contra Costa county, CA		 11 years
5 months		 24 47.6
(45.7)
99 DEAD BATTERY by bassocantor
Contra Costa county, CA		 8 years 17 47.2
(44.6)
100 SIENNA CHESTNUT LUVS GEMDAS by CacheHound2002
Contra Costa county, CA		 11 years
9 months		 25 47.1
(45.3)
Total records: 689, Page 1 of 7
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Statistics last updated Thursday, 11 June 2026 04:29:30 Eastern Daylight Time
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