| 1 |
 |
Los Vaqueros Reservoir Earthcache
by PathfinderMark
Contra Costa county, CA |
16 years
1 month |
38 |
42.4
(41.3) |
| 2 |
|
Liesegang Bands
by jagerdorf
Contra Costa county, CA |
14 years
4 months |
36 |
40.0
(38.9) |
| 3 |
|
Saint Mary's Banks - The Mulholland Formation
by jagerdorf
Contra Costa county, CA |
15 years
1 month |
38 |
39.9
(38.8) |
| 4 |
|
Year after year, it keeps it's balance 🤸
by Psychoticjesters
Contra Costa county, CA |
9 years |
25 |
36.2
(34.8) |
| 5 |
|
HFS #14: Point Pinole
by jagerdorf
Contra Costa county, CA |
12 years
8 months |
49 |
25.9
(25.4) |
| 6 |
|
Prospect Adit
by jagerdorf
Contra Costa county, CA |
14 years
4 months |
56 |
25.7
(25.3) |
| 7 |
|
HFS# 13: San Pablo - Contra Costa CC
by jagerdorf
Contra Costa county, CA |
12 years
8 months |
55 |
23.1
(22.7) |
| 8 |
|
Just Another Scar in the Earth
by Psychoticjesters
Contra Costa county, CA |
4 years |
19 |
21.4
(20.3) |
| 9 |
|
Sand Mines
by Alamogul
Contra Costa county, CA |
16 years
3 months |
81 |
20.1
(19.9) |
| 10 |
|
Las Trampas: Ancient Sea
by Unit33
Contra Costa county, CA |
9 years |
49 |
18.4
(18.0) |
| 11 |
|
Rocky Rose Buds
by Dasgrendel
Contra Costa county, CA |
16 years
4 months |
92 |
17.8
(17.6) |
| 12 |
|
Graywacke
by TeamNulti2003
Contra Costa county, CA |
12 years
8 months |
74 |
17.2
(16.9) |
| 13 |
|
Caldecott Tilted Beds
by jagerdorf
Contra Costa county, CA |
16 years
4 months |
98 |
16.7
(16.6) |
| 14 |
|
Treasures of Mount Diablo
by Alamogul
Contra Costa county, CA |
12 years
6 months |
79 |
15.9
(15.7) |
| 15 |
|
Antioch Dunes
by jagerdorf
Contra Costa county, CA |
12 years
11 months |
84 |
15.4
(15.3) |
| 16 |
|
Pinole: It's your fault :)
by automatopotato
Contra Costa county, CA |
1 year
4 months |
9 |
15.1
(13.6) |
| 17 |
|
Lime Mine
by Alamogul
Contra Costa county, CA |
15 years
11 months |
107 |
14.9
(14.8) |
| 18 |
|
Red Ribbon Chert, is it Magnetic? 🧲
by Psychoticjesters
Contra Costa county, CA |
1 year
2 months |
8 |
14.9
(13.2) |
| 19 |
|
Shell Ridge
by Alamogul
Contra Costa county, CA |
16 years
6 months |
112 |
14.8
(14.6) |
| 20 |
|
Blue Schist
by TeamNulti2003
Contra Costa county, CA |
17 years
6 months |
120 |
14.6
(14.5) |
| 21 |
|
Radiolarian Chert Folds - Chevrons
by TeamNulti2003
Contra Costa county, CA |
17 years
6 months |
128 |
13.7
(13.6) |
| 22 |
|
Blueschist – Yes Road Cuts ARE Tourist Attractions
by jagerdorf
Contra Costa county, CA |
4 years |
30 |
13.5
(13.0) |
| 23 |
|
Hercules Slump and Earthflow
by Thutmosis
Contra Costa county, CA |
17 years |
143 |
11.9
(11.8) |
| 24 |
|
The Anthropocene and the Great Flood 1852-53
by jagerdorf
Contra Costa county, CA |
13 years
10 months |
117 |
11.8
(11.7) |
| 25 |
|
Turritella Snail Bed
by TeamNulti2003
Contra Costa county, CA |
17 years
6 months |
156 |
11.3
(11.2) |
| 26 |
|
Black Diamonds
by Alamogul
Contra Costa county, CA |
16 years
3 months |
145 |
11.2 |
| 27 |
|
Thrust Fault
by TeamNulti2003
Contra Costa county, CA |
12 years
8 months |
114 |
11.1
(11.0) |
| 28 |
|
Easter Hill Lava
by laytonius
Contra Costa county, CA |
1 year
3 months |
12 |
10.7
(9.88) |
| 29 |
|
Carquinez Scenic Drive Earthcache
by nsearls25
Contra Costa county, CA |
7 years
1 month |
69 |
10.3
(10.1) |
| 30 |
|
Los Vaqueros Concretions Earthcache
by PathfinderMark
Contra Costa county, CA |
16 years
1 month |
158 |
10.2
(10.1) |
| 31 |
|
Fossils in Oakley?
by buffalod5
Contra Costa county, CA |
4 years
4 months |
47 |
9.34
(9.14) |
| 32 |
|
Pillow Basalt
by TeamNulti2003
Contra Costa county, CA |
17 years
6 months |
192 |
9.14
(9.10) |
| 33 |
|
Round Top
by Alamogul
Contra Costa county, CA |
19 years
6 months |
219 |
8.92
(8.88) |
| 34 |
|
Quartz Intrusions, Folding, and Foliation
by yoyo ken
Contra Costa county, CA |
9 months |
11 |
7.22
(6.62) |
| 35 |
|
Richmond "REDS"
by Team_Conway
Contra Costa county, CA |
1 year
3 months |
19 |
6.84
(6.50) |
| 36 |
|
Wind Caves
by TeamNulti2003
Contra Costa county, CA |
17 years
6 months |
291 |
6.03
(6.01) |
| 37 |
|
Roadside Geology: Slate "EXPOSED"
by Team_Conway
Contra Costa county, CA |
1 year
3 months |
23 |
5.69
(5.45) |
| 38 |
|
Northbrae Rhyolite and Hayward Fault Dynamics
by yoyo ken
Contra Costa county, CA |
9 months |
15 |
5.29
(4.96) |
| 39 |
|
Sag Ponds and Springs Along the Hayward Fault
by yoyo ken
Contra Costa county, CA |
9 months |
16 |
4.96
(4.67) |
| 40 |
|
Metamorphic Facies of the Farallon Megathrust
by yoyo ken
Contra Costa county, CA |
9 months |
20 |
3.97
(3.78) |