| 1 |
 |
Los Vaqueros Reservoir Earthcache
by PathfinderMark
Contra Costa county, CA |
15 years
11 months |
38 |
42.1
(41.0) |
| 2 |
|
Saint Mary's Banks - The Mulholland Formation
by jagerdorf
Contra Costa county, CA |
15 years |
37 |
40.6
(39.5) |
| 3 |
|
Liesegang Bands
by jagerdorf
Contra Costa county, CA |
14 years
3 months |
36 |
39.6
(38.6) |
| 4 |
|
Year after year, it keeps it's balance 🤸
by Psychoticjesters
Contra Costa county, CA |
8 years
11 months |
25 |
35.7
(34.3) |
| 5 |
|
HFS #14: Point Pinole
by jagerdorf
Contra Costa county, CA |
12 years
6 months |
49 |
25.6
(25.1) |
| 6 |
|
Prospect Adit
by jagerdorf
Contra Costa county, CA |
14 years
3 months |
56 |
25.5
(25.0) |
| 7 |
|
HFS# 13: San Pablo - Contra Costa CC
by jagerdorf
Contra Costa county, CA |
12 years
7 months |
55 |
22.9
(22.5) |
| 8 |
|
Just Another Scar in the Earth
by Psychoticjesters
Contra Costa county, CA |
3 years
11 months |
19 |
20.7
(19.7) |
| 9 |
|
Sand Mines
by Alamogul
Contra Costa county, CA |
16 years
2 months |
81 |
20.0
(19.7) |
| 10 |
|
Las Trampas: Ancient Sea
by Unit33
Contra Costa county, CA |
8 years
10 months |
49 |
18.2
(17.8) |
| 11 |
|
Rocky Rose Buds
by Dasgrendel
Contra Costa county, CA |
16 years
2 months |
92 |
17.6
(17.5) |
| 12 |
|
Graywacke
by TeamNulti2003
Contra Costa county, CA |
12 years
6 months |
74 |
17.0
(16.8) |
| 13 |
|
Caldecott Tilted Beds
by jagerdorf
Contra Costa county, CA |
16 years
3 months |
98 |
16.6
(16.4) |
| 14 |
|
Treasures of Mount Diablo
by Alamogul
Contra Costa county, CA |
12 years
5 months |
77 |
16.1
(15.9) |
| 15 |
|
Antioch Dunes
by jagerdorf
Contra Costa county, CA |
12 years
10 months |
84 |
15.3
(15.1) |
| 16 |
|
Lime Mine
by Alamogul
Contra Costa county, CA |
15 years
9 months |
107 |
14.8
(14.6) |
| 17 |
|
Shell Ridge
by Alamogul
Contra Costa county, CA |
16 years
4 months |
112 |
14.6
(14.5) |
| 18 |
|
Blue Schist
by TeamNulti2003
Contra Costa county, CA |
17 years
5 months |
120 |
14.5
(14.4) |
| 19 |
|
Pinole: It's your fault :)
by automatopotato
Contra Costa county, CA |
1 year
2 months |
9 |
13.7
(12.3) |
| 20 |
|
Radiolarian Chert Folds - Chevrons
by TeamNulti2003
Contra Costa county, CA |
17 years
5 months |
128 |
13.6
(13.5) |
| 21 |
|
Red Ribbon Chert, is it Magnetic? 🧲
by Psychoticjesters
Contra Costa county, CA |
1 year |
8 |
13.3
(11.8) |
| 22 |
|
Blueschist – Yes Road Cuts ARE Tourist Attractions
by jagerdorf
Contra Costa county, CA |
3 years
10 months |
30 |
13.1
(12.6) |
| 23 |
|
Hercules Slump and Earthflow
by Thutmosis
Contra Costa county, CA |
16 years
11 months |
139 |
12.2
(12.1) |
| 24 |
|
The Anthropocene and the Great Flood 1852-53
by jagerdorf
Contra Costa county, CA |
13 years
8 months |
117 |
11.7
(11.6) |
| 25 |
|
Turritella Snail Bed
by TeamNulti2003
Contra Costa county, CA |
17 years
5 months |
156 |
11.2
(11.1) |
| 26 |
|
Black Diamonds
by Alamogul
Contra Costa county, CA |
16 years
2 months |
145 |
11.2
(11.1) |
| 27 |
|
Thrust Fault
by TeamNulti2003
Contra Costa county, CA |
12 years
6 months |
114 |
11.0
(10.9) |
| 28 |
|
Los Vaqueros Concretions Earthcache
by PathfinderMark
Contra Costa county, CA |
16 years |
157 |
10.2
(10.1) |
| 29 |
|
Carquinez Scenic Drive Earthcache
by nsearls25
Contra Costa county, CA |
6 years
11 months |
69 |
10.1
(9.93) |
| 30 |
|
Easter Hill Lava
by laytonius
Contra Costa county, CA |
1 year
1 month |
12 |
9.63
(8.89) |
| 31 |
|
Fossils in Oakley?
by buffalod5
Contra Costa county, CA |
4 years
3 months |
45 |
9.47
(9.26) |
| 32 |
|
Pillow Basalt
by TeamNulti2003
Contra Costa county, CA |
17 years
5 months |
192 |
9.08
(9.03) |
| 33 |
|
Round Top
by Alamogul
Contra Costa county, CA |
19 years
4 months |
219 |
8.86
(8.82) |
| 34 |
|
Richmond "REDS"
by Team_Conway
Contra Costa county, CA |
1 year
2 months |
19 |
6.17
(5.86) |
| 35 |
|
Quartz Intrusions, Folding, and Foliation
by yoyo ken
Contra Costa county, CA |
8 months |
11 |
6.05
(5.54) |
| 36 |
|
Wind Caves
by TeamNulti2003
Contra Costa county, CA |
17 years
5 months |
291 |
5.99
(5.97) |
| 37 |
|
Roadside Geology: Slate "EXPOSED"
by Team_Conway
Contra Costa county, CA |
1 year
2 months |
21 |
5.62
(5.36) |
| 38 |
|
Northbrae Rhyolite and Hayward Fault Dynamics
by yoyo ken
Contra Costa county, CA |
8 months |
15 |
4.44
(4.16) |
| 39 |
|
Sag Ponds and Springs Along the Hayward Fault
by yoyo ken
Contra Costa county, CA |
8 months |
16 |
4.16
(3.91) |
| 40 |
|
Metamorphic Facies of the Farallon Megathrust
by yoyo ken
Contra Costa county, CA |
8 months |
20 |
3.33
(3.17) |