Loneliest Earthcaches
San Luis Obispo county
California

Total records: 26
Rank Geocache Age Finds cCP
(nfCP)
1 Colluvial Deposits on East Cuesta Ridge by SLO Trekker
San Luis Obispo county, CA		 15 years
10 months		 31 51.1
(49.5)
2 Klau Fault – Klau Mining District by jagerdorf
San Luis Obispo county, CA		 14 years
9 months		 29 50.9
(49.2)
3 Siliceous Shales on East Cuesta Ridge by SLO Trekker
San Luis Obispo county, CA		 15 years
5 months		 32 48.2
(46.8)
4 Kink Folds on East Cuesta Ridge by SLO Trekker
San Luis Obispo county, CA		 15 years
10 months		 34 46.6
(45.2)
5 The Morros Earthcache by Geo_cats
San Luis Obispo county, CA		 21 years
3 months		 46 46.3
(45.3)
6 Oceano Dunes SVRA Restoration by 1962penny
San Luis Obispo county, CA		 4 years
5 months		 15 29.7
(27.8)
7 Wallace Creek by badfeet
San Luis Obispo county, CA		 17 years
1 month		 86 19.9
(19.7)
8 Gully at Soda Lake Road by Tung8
San Luis Obispo county, CA		 5 months 3 14.6
(11.0)
9 Soda Lake at The Carrizo Plain by slmslo
San Luis Obispo county, CA		 18 years
3 months		 139 13.1
10 A Deep Dive into the Monterey Formation by LenaArlo
San Luis Obispo county, CA		 7 months 5 12.3
(10.2)
11 Wilmar Avenue Fault -- Pismo Beach by 1962penny
San Luis Obispo county, CA		 3 years
4 months		 28 11.9
(11.5)
12 The Miniature Archipelago of Pismo by Rapaladude
San Luis Obispo county, CA		 7 years
11 months		 71 11.3
(11.1)
13 The Deep Water Cycle and Serpentinite by Oreo Pony
San Luis Obispo county, CA		 17 years
8 months		 162 10.9
14 Spooners Cove Caves by Gummyfrog
San Luis Obispo county, CA		 10 years
1 month		 96 10.5
(10.4)
15 The Sands Of Pismo Beach by IsabellaMolly
San Luis Obispo county, CA		 9 years
7 months		 105 9.14
(9.06)
16 One of Many Carrizo Plain Sag Ponds by Tung8
San Luis Obispo county, CA		 5 months 5 8.76
(7.30)
17 Reading Rocks! by bluesnote
San Luis Obispo county, CA		 10 years
8 months		 127 8.42
(8.36)
18 Monster Series: Medusa by opted-out user
San Luis Obispo county, CA		 7 months 8 8.28
(7.36)
19 Sandstone at Moonstone Beach by smccfamily
San Luis Obispo county, CA		 1 year
5 months		 25 5.78
(5.56)
20 Sea Stacks Near Dinosaur Caves by Rapaladude
San Luis Obispo county, CA		 7 years
11 months		 146 5.47
(5.43)
21 More 70 mph Geology! by 1962penny
San Luis Obispo county, CA		 3 years
4 months		 66 5.04
(4.97)
22 Serpentinite at Madonna Inn by Oreo Pony
San Luis Obispo county, CA		 17 years
8 months		 463 3.83
(3.82)
23 Monster Series: The Hellmouth by opted-out user
San Luis Obispo county, CA		 9 months 36 2.14
(2.08)
24 Pismo Beach Geodes by bluesnote
San Luis Obispo county, CA		 < 1 month 1 1.92
(0.96)
25 Morro Rock Earthcache by Mauison
San Luis Obispo county, CA		 19 years
6 months		 1,908 1.03
26 Madonna Inn Tafoni by bluesnote
San Luis Obispo county, CA		 < 1 month 1 0.82
(0.41)
Total records: 26
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Statistics last updated Thursday, 11 June 2026 05:27:47 Eastern Daylight Time
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