| 1 |
 |
Los Vaqueros Reservoir Earthcache
by PathfinderMark
Contra Costa county, CA |
16 years
4 months |
40 |
40.9
(39.9) |
| 2 |
|
Liesegang Bands
by jagerdorf
Contra Costa county, CA |
14 years
7 months |
36 |
40.7
(39.6) |
| 3 |
|
Saint Mary's Banks - The Mulholland Formation
by jagerdorf
Contra Costa county, CA |
15 years
4 months |
39 |
39.5
(38.5) |
| 4 |
|
Year after year, it keeps it's balance 🤸
by Psychoticjesters
Contra Costa county, CA |
9 years
3 months |
25 |
37.2
(35.8) |
| 5 |
|
HFS #14: Point Pinole
by jagerdorf
Contra Costa county, CA |
12 years
11 months |
49 |
26.4
(25.9) |
| 6 |
|
Prospect Adit
by jagerdorf
Contra Costa county, CA |
14 years
7 months |
57 |
25.7
(25.3) |
| 7 |
|
HFS# 13: San Pablo - Contra Costa CC
by jagerdorf
Contra Costa county, CA |
12 years
11 months |
55 |
23.6
(23.2) |
| 8 |
|
Just Another Scar in the Earth
by Psychoticjesters
Contra Costa county, CA |
4 years
3 months |
21 |
20.6
(19.6) |
| 9 |
|
Sand Mines
by Alamogul
Contra Costa county, CA |
16 years
6 months |
81 |
20.4
(20.2) |
| 10 |
|
Las Trampas: Ancient Sea
by Unit33
Contra Costa county, CA |
9 years
3 months |
49 |
18.9
(18.6) |
| 11 |
|
Rocky Rose Buds
by Dasgrendel
Contra Costa county, CA |
16 years
7 months |
91 |
18.3
(18.1) |
| 12 |
|
Caldecott Tilted Beds
by jagerdorf
Contra Costa county, CA |
16 years
7 months |
96 |
17.3
(17.2) |
| 13 |
|
Graywacke
by TeamNulti2003
Contra Costa county, CA |
12 years
11 months |
75 |
17.3
(17.0) |
| 14 |
|
Antioch Dunes
by jagerdorf
Contra Costa county, CA |
13 years
2 months |
83 |
15.9
(15.7) |
| 15 |
|
Treasures of Mount Diablo
by Alamogul
Contra Costa county, CA |
12 years
9 months |
81 |
15.8
(15.6) |
| 16 |
|
Lime Mine
by Alamogul
Contra Costa county, CA |
16 years
2 months |
106 |
15.3
(15.1) |
| 17 |
|
Blue Schist
by TeamNulti2003
Contra Costa county, CA |
17 years
9 months |
118 |
15.1
(15.0) |
| 18 |
|
Shell Ridge
by Alamogul
Contra Costa county, CA |
16 years
9 months |
113 |
14.8
(14.7) |
| 19 |
|
Pinole: It's your fault :)
by automatopotato
Contra Costa county, CA |
1 year
7 months |
11 |
14.7
(13.5) |
| 20 |
|
Red Ribbon Chert, is it Magnetic? 🧲
by Psychoticjesters
Contra Costa county, CA |
1 year
5 months |
10 |
14.4
(13.1) |
| 21 |
|
Blueschist – Yes Road Cuts ARE Tourist Attractions
by jagerdorf
Contra Costa county, CA |
4 years
3 months |
30 |
14.3
(13.9) |
| 22 |
|
Radiolarian Chert Folds - Chevrons
by TeamNulti2003
Contra Costa county, CA |
17 years
9 months |
126 |
14.1
(14.0) |
| 23 |
|
Easter Hill Lava
by laytonius
Contra Costa county, CA |
1 year
6 months |
12 |
12.8
(11.8) |
| 24 |
|
Hercules Slump and Earthflow
by Thutmosis
Contra Costa county, CA |
17 years
3 months |
143 |
12.1
(12.0) |
| 25 |
|
The Anthropocene and the Great Flood 1852-53
by jagerdorf
Contra Costa county, CA |
14 years
1 month |
118 |
12.0
(11.9) |
| 26 |
|
Turritella Snail Bed
by TeamNulti2003
Contra Costa county, CA |
17 years
9 months |
155 |
11.5
(11.4) |
| 27 |
|
Thrust Fault
by TeamNulti2003
Contra Costa county, CA |
12 years
11 months |
114 |
11.4
(11.3) |
| 28 |
|
Black Diamonds
by Alamogul
Contra Costa county, CA |
16 years
6 months |
147 |
11.3
(11.2) |
| 29 |
|
Carquinez Scenic Drive Earthcache
by nsearls25
Contra Costa county, CA |
7 years
4 months |
70 |
10.5
(10.3) |
| 30 |
|
Los Vaqueros Concretions Earthcache
by PathfinderMark
Contra Costa county, CA |
16 years
4 months |
158 |
10.4
(10.3) |
| 31 |
|
Quartz Intrusions, Folding, and Foliation
by yoyo ken
Contra Costa county, CA |
1 year |
11 |
9.51
(8.72) |
| 32 |
|
Pillow Basalt
by TeamNulti2003
Contra Costa county, CA |
17 years
9 months |
188 |
9.47
(9.42) |
| 33 |
|
Round Top
by Alamogul
Contra Costa county, CA |
19 years
9 months |
218 |
9.07
(9.03) |
| 34 |
|
Fossils in Oakley?
by buffalod5
Contra Costa county, CA |
4 years
7 months |
54 |
8.59
(8.44) |
| 35 |
|
Northbrae Rhyolite and Hayward Fault Dynamics
by yoyo ken
Contra Costa county, CA |
1 year |
15 |
6.97
(6.54) |
| 36 |
|
Richmond "REDS"
by Team_Conway
Contra Costa county, CA |
1 year
6 months |
23 |
6.75
(6.47) |
| 37 |
|
Sag Ponds and Springs Along the Hayward Fault
by yoyo ken
Contra Costa county, CA |
1 year |
16 |
6.54
(6.15) |
| 38 |
|
Wind Caves
by TeamNulti2003
Contra Costa county, CA |
17 years
9 months |
288 |
6.18
(6.16) |
| 39 |
|
Roadside Geology: Slate "EXPOSED"
by Team_Conway
Contra Costa county, CA |
1 year
6 months |
27 |
5.78
(5.57) |
| 40 |
|
Metamorphic Facies of the Farallon Megathrust
by yoyo ken
Contra Costa county, CA |
1 year |
20 |
5.23
(4.98) |
| 41 |
|
Fossiliferous Sandstone
by jagerdorf
Contra Costa county, CA |
< 1 month |
3 |
2.10
(1.57) |