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

Johnson/Kaylor Banks (Past Producer)Unnamed--Paddy's Mt. (Past Producer)Herlin Iron Works + 1 more nearby (Past Producer)Witner Mine (Past Producer)Tate Paint Mine (Past Producer)Hafer Mine / Beck Mine (Past Producer)
Past ProducerProducerProspectOccurrenceStatus unknown
6 paw pins; nearby sites are grouped into one pin. Hover or tap a pin for the site name. 1 site(s) with USGS coordinates outside the outline are not pinned. County outline: US Census Bureau cartographic boundary file (2023). Locations approximate.

Field cards: what kind of sites?

8
Past Producer

Produced ore or material at some point in the past.

Status terms come from USGS MRDS records.

Minerals recorded here

Hematite 4Limonite 2

Commodities

Iron 8

Sites

SiteCommodityMinerals recordedStatusApprox. location
Herlin Iron WorksIronHematitePast Producer40.858, -77.205
Johnson/Kaylor BanksIronHematitePast Producer40.853, -77.341
Unnamed--Paddy's Mt.IronHematitePast Producer40.882, -77.247
Witner MineIronHematitePast Producer40.944, -77.184
Tate Paint MineIronLimonitePast Producer41.136, -76.901
Hafer Mine / Beck MineIronLimonitePast Producer41.061, -76.891
Glen Iron MinesIron—Past Producer40.864, -77.197
Yankee Drift ProspectIron—Past Producer39.919, -76.858

Fossil collections

The Paleobiology Database lists 1 fossil collection records in Union County. These are research records, not public dig sites.

Nearby counties

Snyder County · Northumberland County · Juniata County · Clinton 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 USGS ceased systematic updates to MRDS around 2011, so status and details may be out of date.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