| 1 |
 |
Los Vaqueros Reservoir Earthcache
by PathfinderMark
Contra Costa county, CA |
16 years
2 months |
38 |
42.8
(41.7) |
| 2 |
|
Liesegang Bands
by jagerdorf
Contra Costa county, CA |
14 years
6 months |
36 |
40.4
(39.3) |
| 3 |
|
Saint Mary's Banks - The Mulholland Formation
by jagerdorf
Contra Costa county, CA |
15 years
3 months |
39 |
39.2
(38.2) |
| 4 |
|
Year after year, it keeps it's balance 🤸
by Psychoticjesters
Contra Costa county, CA |
9 years
2 months |
25 |
36.7
(35.3) |
| 5 |
|
HFS #14: Point Pinole
by jagerdorf
Contra Costa county, CA |
12 years
9 months |
49 |
26.2
(25.6) |
| 6 |
|
Prospect Adit
by jagerdorf
Contra Costa county, CA |
14 years
6 months |
56 |
25.9
(25.5) |
| 7 |
|
HFS# 13: San Pablo - Contra Costa CC
by jagerdorf
Contra Costa county, CA |
12 years
10 months |
55 |
23.4
(22.9) |
| 8 |
|
Just Another Scar in the Earth
by Psychoticjesters
Contra Costa county, CA |
4 years
2 months |
19 |
22.1
(21.0) |
| 9 |
|
Sand Mines
by Alamogul
Contra Costa county, CA |
16 years
5 months |
81 |
20.3
(20.0) |
| 10 |
|
Las Trampas: Ancient Sea
by Unit33
Contra Costa county, CA |
9 years
1 month |
49 |
18.7
(18.3) |
| 11 |
|
Rocky Rose Buds
by Dasgrendel
Contra Costa county, CA |
16 years
5 months |
92 |
17.9
(17.7) |
| 12 |
|
Graywacke
by TeamNulti2003
Contra Costa county, CA |
12 years
9 months |
74 |
17.3
(17.1) |
| 13 |
|
Caldecott Tilted Beds
by jagerdorf
Contra Costa county, CA |
16 years
6 months |
96 |
17.2
(17.0) |
| 14 |
|
Pinole: It's your fault :)
by automatopotato
Contra Costa county, CA |
1 year
5 months |
9 |
16.6
(14.9) |
| 15 |
|
Red Ribbon Chert, is it Magnetic? 🧲
by Psychoticjesters
Contra Costa county, CA |
1 year
3 months |
8 |
16.5
(14.7) |
| 16 |
|
Treasures of Mount Diablo
by Alamogul
Contra Costa county, CA |
12 years
8 months |
79 |
16.0
(15.8) |
| 17 |
|
Antioch Dunes
by jagerdorf
Contra Costa county, CA |
13 years
1 month |
83 |
15.8
(15.6) |
| 18 |
|
Lime Mine
by Alamogul
Contra Costa county, CA |
16 years |
107 |
15.0
(14.9) |
| 19 |
|
Shell Ridge
by Alamogul
Contra Costa county, CA |
16 years
7 months |
112 |
14.9
(14.7) |
| 20 |
|
Blue Schist
by TeamNulti2003
Contra Costa county, CA |
17 years
8 months |
120 |
14.7
(14.6) |
| 21 |
|
Blueschist – Yes Road Cuts ARE Tourist Attractions
by jagerdorf
Contra Costa county, CA |
4 years
2 months |
30 |
13.9
(13.5) |
| 22 |
|
Radiolarian Chert Folds - Chevrons
by TeamNulti2003
Contra Costa county, CA |
17 years
8 months |
128 |
13.8
(13.7) |
| 23 |
|
Hercules Slump and Earthflow
by Thutmosis
Contra Costa county, CA |
17 years
2 months |
143 |
12.0
(11.9) |
| 24 |
|
The Anthropocene and the Great Flood 1852-53
by jagerdorf
Contra Costa county, CA |
13 years
11 months |
117 |
12.0
(11.9) |
| 25 |
|
Easter Hill Lava
by laytonius
Contra Costa county, CA |
1 year
4 months |
12 |
11.8
(10.9) |
| 26 |
|
Turritella Snail Bed
by TeamNulti2003
Contra Costa county, CA |
17 years
8 months |
156 |
11.3 |
| 27 |
|
Black Diamonds
by Alamogul
Contra Costa county, CA |
16 years
5 months |
146 |
11.3
(11.2) |
| 28 |
|
Thrust Fault
by TeamNulti2003
Contra Costa county, CA |
12 years
9 months |
114 |
11.3
(11.2) |
| 29 |
|
Carquinez Scenic Drive Earthcache
by nsearls25
Contra Costa county, CA |
7 years
2 months |
69 |
10.5
(10.3) |
| 30 |
|
Los Vaqueros Concretions Earthcache
by PathfinderMark
Contra Costa county, CA |
16 years
3 months |
158 |
10.3
(10.2) |
| 31 |
|
Pillow Basalt
by TeamNulti2003
Contra Costa county, CA |
17 years
8 months |
192 |
9.21
(9.16) |
| 32 |
|
Round Top
by Alamogul
Contra Costa county, CA |
19 years
7 months |
218 |
9.02
(8.98) |
| 33 |
|
Fossils in Oakley?
by buffalod5
Contra Costa county, CA |
4 years
6 months |
51 |
8.86
(8.69) |
| 34 |
|
Quartz Intrusions, Folding, and Foliation
by yoyo ken
Contra Costa county, CA |
11 months |
11 |
8.39
(7.69) |
| 35 |
|
Richmond "REDS"
by Team_Conway
Contra Costa county, CA |
1 year
5 months |
20 |
7.15
(6.81) |
| 36 |
|
Northbrae Rhyolite and Hayward Fault Dynamics
by yoyo ken
Contra Costa county, CA |
11 months |
15 |
6.15
(5.77) |
| 37 |
|
Wind Caves
by TeamNulti2003
Contra Costa county, CA |
17 years
8 months |
291 |
6.08
(6.06) |
| 38 |
|
Roadside Geology: Slate "EXPOSED"
by Team_Conway
Contra Costa county, CA |
1 year
5 months |
24 |
5.99
(5.75) |
| 39 |
|
Sag Ponds and Springs Along the Hayward Fault
by yoyo ken
Contra Costa county, CA |
11 months |
16 |
5.77
(5.43) |
| 40 |
|
Metamorphic Facies of the Farallon Megathrust
by yoyo ken
Contra Costa county, CA |
11 months |
20 |
4.61
(4.39) |