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
11 months		 31 51.4
(49.8)
2 Klau Fault – Klau Mining District by jagerdorf
San Luis Obispo county, CA		 14 years
10 months		 29 51.2
(49.5)
3 Siliceous Shales on East Cuesta Ridge by SLO Trekker
San Luis Obispo county, CA		 15 years
6 months		 32 48.5
(47.0)
4 Kink Folds on East Cuesta Ridge by SLO Trekker
San Luis Obispo county, CA		 15 years
11 months		 34 46.8
(45.5)
5 The Morros Earthcache by Geo_cats
San Luis Obispo county, CA		 21 years
4 months		 46 46.5
(45.5)
6 Oceano Dunes SVRA Restoration by 1962penny
San Luis Obispo county, CA		 4 years
6 months		 15 30.3
(28.4)
7 Wallace Creek by badfeet
San Luis Obispo county, CA		 17 years
2 months		 86 20.0
(19.8)
8 A Deep Dive into the Monterey Formation by LenaArlo
San Luis Obispo county, CA		 8 months 4 17.5
(14.0)
9 Gully at Soda Lake Road by Tung8
San Luis Obispo county, CA		 6 months 3 17.4
(13.1)
10 Soda Lake at The Carrizo Plain by slmslo
San Luis Obispo county, CA		 18 years
4 months		 139 13.2
(13.1)
11 Wilmar Avenue Fault -- Pismo Beach by 1962penny
San Luis Obispo county, CA		 3 years
5 months		 28 12.2
(11.8)
12 The Miniature Archipelago of Pismo by Rapaladude
San Luis Obispo county, CA		 8 years 71 11.4
(11.2)
13 The Deep Water Cycle and Serpentinite by Oreo Pony
San Luis Obispo county, CA		 17 years
9 months		 164 10.9
(10.8)
14 Spooners Cove Caves by Gummyfrog
San Luis Obispo county, CA		 10 years
2 months		 96 10.6
(10.5)
15 One of Many Carrizo Plain Sag Ponds by Tung8
San Luis Obispo county, CA		 6 months 5 10.5
(8.72)
16 The Sands Of Pismo Beach by IsabellaMolly
San Luis Obispo county, CA		 9 years
8 months		 105 9.23
(9.14)
17 Reading Rocks! by bluesnote
San Luis Obispo county, CA		 10 years
9 months		 127 8.49
(8.43)
18 Monster Series: Medusa by opted-out user
San Luis Obispo county, CA		 9 months 11 6.79
(6.23)
19 Sandstone at Moonstone Beach by smccfamily
San Luis Obispo county, CA		 1 year
6 months		 27 5.67
(5.47)
20 Sea Stacks Near Dinosaur Caves by Rapaladude
San Luis Obispo county, CA		 8 years 149 5.42
(5.38)
21 Pismo Beach Geodes by bluesnote
San Luis Obispo county, CA		 1 month 2 5.20
(3.47)
22 More 70 mph Geology! by 1962penny
San Luis Obispo county, CA		 3 years
5 months		 72 4.74
(4.68)
23 Madonna Inn Tafoni by bluesnote
San Luis Obispo county, CA		 1 month 2 4.65
(3.10)
24 Serpentinite at Madonna Inn by Oreo Pony
San Luis Obispo county, CA		 17 years
9 months		 466 3.82
(3.81)
25 Monster Series: The Hellmouth by opted-out user
San Luis Obispo county, CA		 10 months 38 2.25
(2.19)
26 Morro Rock Earthcache by Mauison
San Luis Obispo county, CA		 19 years
7 months		 1,917 1.03
Total records: 26
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Statistics last updated Sunday, 12 July 2026 04:27:57 Eastern Daylight Time
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