RockWoof
Check access before you go. Most sites listed here are old mines, quarries or prospects, and many are on private land or active mining claims. Get the landowner's permission, check the rules of the agency that manages any public land, and never enter mine workings. Locations are approximate.

Sketch map

Webley No. 3 Deposit + 11 more nearby (Occurrence)Sec. 21 Deposit C + 4 more nearby (Past Producer)Sec. 10 Deposit (Prospect)A.B.C. Placer (Unknown)Sec. 22 Deposit + 5 more nearby (Past Producer)Unnamed Mine + 1 more nearby (Producer)Sec. 29 Deposit B (Occurrence)Chinaman Bar Placer (Occurrence)Saddle Mountains (Occurrence)Soap Lake (Occurrence)Sulfate Lake (Past Producer)International Titanium Plant (Producer)Carbonate Lake (Unknown)Grand Coulee (Occurrence)Mitchell Lake (Past Producer)Black Rosauer-Electric City (Occurrence)Black - Rosauer + 5 more nearby (Producer)
Past ProducerProducerProspectOccurrenceStatus unknown
17 paw pins; nearby sites are grouped into one pin. Hover or tap a pin for the site name. County outline: US Census Bureau cartographic boundary file (2023). Locations approximate.

Woof’s favorite find

Black - Rosauer

We picked it because its USGS record mentions 2 gem or collectible minerals (Gold, Silver) and 4 of our card minerals overall. No other named site here scores as high on both counts. USGS lists it as producer for Molybdenum, Silver. Minerals mentioned: Gold, Pyrite, Galena, Silver. Approx. location 47.933, -119.014. USGS record.

Ask first: a USGS record doesn’t mean you can visit. Find out who owns the land and get permission before collecting.

Field cards: what kind of sites?

14
Past Producer

Produced ore or material at some point in the past.

12
Occurrence

The mineral was noted here, without development.

9
Prospect

Explored or test-dug, with no recorded production.

5
Producer

Was producing when the record was made.

3
Unknown

Status not recorded.

Status terms come from USGS MRDS records.

Mineral cards

Counts are sites whose USGS record mentions the mineral or commodity. Hardness from Mindat.

Minerals recorded here

Gold 1Galena 1Molybdenite 1Pyrite 1

Commodities

Diatomite 27Silver 4Gold 3Molybdenum 3Sodium 3Uranium 2Gemstone 1Titanium 1Salt 1

Sites (first 40)

SiteCommodityMinerals recordedStatusApprox. location
Black - RosauerMolybdenum, SilverGalena, Molybdenite, PyriteProducer47.933, -119.014
Chinaman Bar PlacerGoldGoldOccurrence46.637, -119.793
Black Rosauer-Electric CityMolybdenum—Occurrence47.950, -118.984
Sec. 22 DepositDiatomite—Past Producer47.032, -119.939
Webley No. 3 DepositDiatomite—Occurrence47.051, -119.993
Sec. 34 DepositDiatomite—Prospect47.002, -119.922
Sec. 10 DepositDiatomite—Prospect47.155, -119.933
Mitchell LakeSodium—Past Producer47.395, -119.123
Sec. 21 Deposit ADiatomite—Past Producer47.043, -119.948
Electric CityMolybdenum—Prospect47.931, -119.005
Saddle MountainsGemstone—Occurrence46.806, -119.559
Hope No. 1Silver—Prospect47.917, -119.016
Unnamed MineDiatomite—Producer46.977, -119.840
Sec. 7 PitDiatomite—Producer46.979, -119.866
Dia-Cousti-Lite DepositDiatomite—Past Producer47.040, -119.973
Sec. 21 Deposit CDiatomite—Past Producer47.031, -119.943
International Titanium PlantTitanium—Producer47.135, -119.209
Sec. 17 Deposit ADiatomite—Past Producer47.049, -119.971
Sec. 3/10 PitDiatomite—Producer46.986, -119.929
Grand CouleeUranium—Occurrence47.857, -119.104
A.B.C. PlacerGold—Unknown47.037, -119.931
Johnson DepositsDiatomite—Prospect47.000, -119.965
PetersonUranium—Occurrence47.939, -118.990
State Products DepositDiatomite—Past Producer47.040, -119.949
Grennell DepositDiatomite—Past Producer47.008, -119.969
Webley DepositDiatomite—Occurrence47.032, -119.925
Sec. 16 Deposit BDiatomite—Prospect47.050, -119.952
Soap LakeSalt—Occurrence47.406, -119.498
Sec. 29 Deposit BDiatomite—Occurrence46.929, -119.855
Sec. 33 DepositDiatomite—Unknown47.007, -119.956
Sec. 16 Deposit ADiatomite—Past Producer47.047, -119.947
S. Sec. 9 DepositDiatomite—Occurrence47.062, -119.951
Sec. 16 Deposit CDiatomite—Prospect47.050, -119.946
Carbonate LakeSodium—Unknown46.959, -119.234
Sec. 27 DepositDiatomite—Occurrence47.022, -119.929
Unnamed MineDiatomite—Past Producer47.056, -119.973
Sulfate LakeSodium—Past Producer46.963, -119.298
Silver QueenSilver—Prospect47.918, -119.016
Sec. 26 Deposit ADiatomite—Occurrence47.023, -119.908
Sec. 9 DepositDiatomite—Past Producer47.066, -119.951

Fossil collections

The Paleobiology Database lists 2 fossil collection records in Grant County. These are research records, not public dig sites.

Nearby counties

Douglas County · Adams County · Kittitas County · Franklin County · Chelan County

Washington mineral guides

Back to all Washington counties.

Related articles

How we built this page: we counted named sites in the USGS Mineral Resources Data System (MRDS) for this area, left out sand, gravel, crushed stone, clay pits and unnamed sites, grouped them by Census county, and linked every site to its USGS record. We did not visit these sites, and MRDS does not tell you who owns the land or whether collecting is allowed.

Source: USGS Mineral Resources Data System (MRDS). USGS ceased systematic updates to MRDS around 2011, so status and details may be out of date. Each site links to its USGS record.

Updated