Where to Find Chert in Pennsylvania

Pennsylvania has 7 mapped collecting spots that report chert, spread across 7 counties. The largest share sits in Armstrong County County with 1 spot. 7 of the spots are on land mapped as publicly accessible.

Map of 7 chert collecting spots in Pennsylvania

Best counties for chert in Pennsylvania

Ranked by the number of mapped chert spots. County links open the full rockhounding page for that county.

Every chert spot we track in Pennsylvania

Sorted by county. Coordinates open in Google Maps.

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 County, Bedford County County, and Blair County County. Every spot on this page appears on the map above with 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.

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