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

Tracy and Crane Farms Explorations (Past Producer)Day Mine (Past Producer)Clinton Tract Mine (Past Producer)Sigler Mine + 3 more nearby (Past Producer)Charlottesburg Mine (Past Producer)Carey Mine (Past Producer)Carey Mine (Past Producer)Tellington Mine (Past Producer)Squier's Mine + 1 more nearby (Past Producer)Cooley's Mine (Past Producer)Cook Mine/ Rheinsmith/ Tellington Mines (Occurrence)Wanaque Mines - Laurel Mine (Past Producer)Wrightenour Mine (Past Producer)Beam Mine (Past Producer)Brown Mine (Past Producer)Hope Mountain + 1 more nearby (Past Producer)Ringwood Mine-Mule Mine + 11 more nearby (Past Producer)Hope Mines (Past Producer)Sloat Farm Mine (Past Producer)Ringwood (Past Producer)Totowa Mine (Past Producer)Agsco Crp/ Paterson, N.J. (Unknown)Teledyne Powder Alloys/Clifton, Nj (Unknown)
Past ProducerProducerProspectOccurrenceStatus unknown
23 paw pins; nearby sites are grouped into one pin. Hover or tap a pin for the site name. 3 site(s) with USGS coordinates outside the outline are not pinned. County outline: US Census Bureau cartographic boundary file (2023). Locations approximate.

Woof’s favorite find

Beam Mine

We picked it because its USGS record mentions 1 of the minerals on our cards and 1 of our card minerals overall. That ties with 30 other site(s), so we broke the tie by mine status (past producers first), then USGS record quality, then name. USGS lists it as past producer for Iron. Minerals mentioned: Magnetite. Approx. location 41.026, -74.305. 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?

38
Past Producer

Produced ore or material at some point in the past.

3
Unknown

Status not recorded.

1
Occurrence

The mineral was noted here, without development.

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

Magnetite 30Hematite 2

Commodities

Iron 33Copper 1Tungsten 1Abrasive 1Silica 1

Sites (first 40)

SiteCommodityMinerals recordedStatusApprox. location
Cooley's MineIronHematitePast Producer41.160, -74.351
Ringwood Mine-Cannon MineIronHematite, MagnetitePast Producer41.132, -74.276
Tracy and Crane Farms ExplorationsIronMagnetitePast Producer41.097, -74.489
Beam MineIronMagnetitePast Producer41.026, -74.305
Wrightenour MineIronMagnetitePast Producer41.122, -74.304
Wallace MineIronMagnetitePast Producer41.124, -74.430
Day MineIronMagnetitePast Producer41.109, -74.476
Cook Mine/ Rheinsmith/ Tellington MinesIronMagnetiteOccurrence41.089, -74.325
Squier's MineIronMagnetitePast Producer41.199, -74.366
Carey MineIronMagnetitePast Producer41.157, -74.402
Rutherford/Wallace & Sigler/Utter MinesIronMagnetitePast Producer41.117, -74.437
RingwoodIronMagnetitePast Producer41.133, -74.248
Brown MineIronMagnetitePast Producer41.038, -74.282
Wanaque Mines - Laurel MineIronMagnetitePast Producer41.060, -74.317
Butler MineIronMagnetitePast Producer41.100, -74.217
Hope MountainIronMagnetitePast Producer41.149, -74.265
Little Blue MineIronMagnetitePast Producer41.133, -74.275
Miller MineIronMagnetitePast Producer41.138, -74.271
Hard MineIronMagnetitePast Producer41.131, -74.275
Blue MineIronMagnetitePast Producer41.132, -74.275
Blue Mine-New MineIronMagnetitePast Producer41.134, -74.271
Saint George MineIronMagnetitePast Producer41.131, -74.275
Sloat Farm MineIronMagnetitePast Producer41.081, -74.262
Tellington MineIronMagnetitePast Producer41.042, -74.368
Ringwood Mine-Mule MineIronMagnetitePast Producer41.130, -74.275
Rutherford MineIronMagnetitePast Producer41.118, -74.438
Clinton Tract MineIronMagnetitePast Producer41.080, -74.466
Sigler MineIronMagnetitePast Producer41.122, -74.432
Canistear MineIronMagnetitePast Producer41.112, -74.476
Centennial MineIronMagnetitePast Producer41.200, -74.363
Keeler MineIronMagnetitePast Producer41.139, -74.270
Totowa MineCopper—Past Producer40.900, -74.220
Keeler-Miller-St.George Mines——Past Producer41.138, -74.271
Teledyne Powder Alloys/Clifton, NjTungsten—Unknown40.883, -74.146
Diamond Productions/ Clifton, N.J.Abrasive—Unknown41.870, -74.125
Carey MineIron—Past Producer41.156, -74.400
Charlottesburg MineIron—Past Producer41.024, -74.428
Peters Mine——Past Producer41.146, -74.269
Ward-Bush Mines——Past Producer41.135, -74.271
Cannon Mine——Past Producer41.132, -74.275

Fossil collections

The Paleobiology Database lists 5 fossil collection records in Passaic County. These are research records, not public dig sites.

Nearby counties

Sussex County · Essex County · Morris County · Bergen County · Hudson County

New Jersey mineral guides

Back to all New Jersey 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