Where to Find Chert in Pennsylvania
Pennsylvania has 7 mapped collecting spots that report chert, spread across 7 counties. 7 of the spots are on land mapped as publicly accessible.
Every chert spot we track in Pennsylvania
EastonNorthampton County, PennsylvaniaPublic access · Chert, Flint, Apatite +6- FeastervilleBucks County, PennsylvaniaPublic access · Sunstone, Agate, Feldspar +3
- PhiladelphiaDelaware County, PennsylvaniaPublic access · Agate, Petrified Wood, Chalcedony +3
- GirtyArmstrong County, PennsylvaniaPublic access · Hematite, Magnetite, Calcite +2
- WatersideBedford County, PennsylvaniaPublic access · Calcite, Chalcedony, Chert
- AllentownLehigh County, PennsylvaniaPublic access · Jasper, Chert
- ClaysburgBlair County, PennsylvaniaPublic access · Chert, Quartz
Best counties for chert in Pennsylvania
Ranked by the number of mapped chert spots. County links open the full rockhounding page for that county.
- Armstrong County1 spot
- Bedford County1 spot
- Blair County1 spot
- Bucks County1 spot
- Delaware County1 spot
- Lehigh County1 spot
- Northampton County1 spot
Before you go
Read the chert identification guide so you know what a keeper looks like in the field: Chert in the encyclopedia.
Chert in Pennsylvania FAQ
Where can you find chert in Pennsylvania?+
The mapped spots concentrate in Armstrong County, Bedford County, and Blair County. Every spot on this page is on the map, and each spot's own page has its coordinates and access notes.
How many chert spots are mapped in Pennsylvania?+
7 spots across 7 counties. The RockHoundR app keeps the same spots on an offline map with public land overlays, geology layers, and your saved finds.
Is it legal to collect chert in Pennsylvania?+
Hand collecting of common rocks and minerals in small amounts for personal use is generally allowed on BLM and U.S. Forest Service land, with limits set by the local field office. National parks, most state parks, and tribal land are closed to collecting. 7 of the 7 mapped spots here sit on land marked public. Always confirm current rules with the managing agency before you dig.
Where else to find chert
More minerals to hunt in Pennsylvania
Hunt chert in Pennsylvania with the map in your pocket
RockHoundR puts these spots on an offline map with BLM and Forest Service overlays, geology layers, and a log for your finds.
