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

Unnamed Sandstone Quarry (Past Producer)Unnamed Sandstone Quarry + 2 more nearby (Past Producer)Mercer Underclay (Occurrence)Producers Economy Coal Co Prospect (Past Producer)Producers Economy Coal Co Prospect (Past Producer)
Past ProducerProducerProspectOccurrenceStatus unknown
5 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.

Field cards: what kind of sites?

5
Past Producer

Produced ore or material at some point in the past.

1
Prospect

Explored or test-dug, with no recorded production.

1
Occurrence

The mineral was noted here, without development.

Status terms come from USGS MRDS records.

Minerals recorded here

No individual minerals are listed in these records.

Commodities

Iron 3Flagstone 3Aluminum 1

Sites

SiteCommodityMinerals recordedStatusApprox. location
Producers Economy Coal Co ProspectIron—Past Producer41.116, -78.120
Unnamed Sandstone QuarryFlagstone—Past Producer40.997, -78.555
I and M Mine Alumina ProspectAluminum, Iron—Prospect41.003, -78.567
Mercer Underclay——Occurrence41.138, -78.309
Unnamed Sandstone QuarryFlagstone—Past Producer40.997, -78.559
Unnamed Sandstone QuarryFlagstone—Past Producer40.772, -78.675
Producers Economy Coal Co ProspectIron—Past Producer41.064, -78.189

Fossil collections

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

Nearby counties

Elk County · Blair County · Monroe County · Centre County · Crawford County

Pennsylvania mineral guides

Back to all Pennsylvania 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 USGS ceased systematic updates to MRDS around 2011, so status and details may be out of date.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