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

Pennsylvania Copper Co. Mine (Past Producer)Young's Mine (Past Producer)Old Perkiomen Mine (Past Producer)Perkiomen/Wetherill/Ecton Mines + 2 more nearby (Past Producer)Shannonville Mine + 2 more nearby (Past Producer)Ce Refrac--King of Prussia, Pa. (Past Producer)Kaiser Alum.--Plymouth Meeting, Pa. (Past Producer)Bethayres Quarry (Past Producer)
Past ProducerProducerProspectOccurrenceStatus unknown
8 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

Ecton Mine

We picked it because its USGS record mentions 1 gem or collectible mineral (Silver) and 2 of our card minerals overall. That ties with 1 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. Minerals mentioned: Copper, Silver. Approx. location 40.129, -75.454. 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?

12
Past Producer

Produced ore or material at some point in the past.

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

No individual minerals are listed in these records.

Commodities

Copper 5Lead 2Granite 1Zirconium 1Chromium 1

Sites

SiteCommodityMinerals recordedStatusApprox. location
Bethayres QuarryGranite—Past Producer40.123, -75.075
Young's MineCopper—Past Producer40.319, -75.476
Old Perkiomen MineCopper—Past Producer40.268, -75.473
Perkiomen/Wetherill/Ecton MinesCopper, Lead—Past Producer40.139, -75.444
Pennsylvania Copper Co. MineCopper—Past Producer40.267, -75.602
Ce Refrac--King of Prussia, Pa.Zirconium—Past Producer40.083, -75.388
Shannonville MineCopper—Past Producer40.126, -75.428
Kaiser Alum.--Plymouth Meeting, Pa.Chromium—Past Producer40.100, -75.276
Ecton Mine——Past Producer40.129, -75.454
Whim ShaftLead—Past Producer40.131, -75.439
Perkiomen Mine——Past Producer40.138, -75.441
Wetherwill Mine——Past Producer40.129, -75.440

Fossil collections

The Paleobiology Database lists 12 fossil collection records in Montgomery County. These are research records, not public dig sites.

Nearby counties

Delaware County · Chester County · Bucks County · Philadelphia County · Berks County

Pennsylvania mineral guides

Back to all Pennsylvania counties.

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