Knauertown: Apatite & Apophyllite Rockhounding in Chester County, Pennsylvania

Updated June 2026

Knauertown is a mapped rockhounding spot in Chester County, Pennsylvania. Reported finds include apatite, apophyllite, azurite, green calcite, chrysocolla, and more. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Chester County
State: Pennsylvania
Nearest road: Saint Peters Road
Postcode: 19520
Coordinates: 40.18374, -75.73150

Geology at Knauertown

This spot sits on Stockton Formation, mapped as arkose that formed roughly 250 to 200 million years ago. Sedimentary rock like this erodes unevenly, so the most productive collecting is typically along fresh cuts, badland slopes, and active drainages.

Mapped unit: Stockton Formation
Age: 250–200 Ma (Triassic)
Rock types: arkose
Elevation: 440 ft

Geologic mapping via Macrostrat and the underlying state geological survey maps (CC BY 4.0). Bedrock at the surface can vary within a mapped unit.

Best time to visit Knauertown

Best months: March to November. Typical highs run 85°F in midsummer and 38°F in midwinter, with winter lows near 23°F.

Climate normals: NOAA 1991-2020 monthlies, GLENMOORE station (6 mi away).

Land & collecting status

Generally open to casual rockhounding

Most public-tagged spots sit on BLM, U.S. Forest Service, or other federal land where reasonable hand collecting of common rocks and minerals is allowed. Confirm posted rules and active mining claims before you dig.

Public-land rules vary by agency, season, and field office. The RockHoundR app pulls live BLM, USFS, NPS, and tribal overlays so you can see exactly which agency manages the ground at this spot.

Sources & verification

Spot details combine the public RockHoundR location dataset, normalized mineral labels, agency land-status checks in the app, and community submissions. Coordinates are approximate until verified in the field.

Sources: RockHoundR public spot dataset, app land overlays, and local agency review before each trip.

Found at Knauertown

Each chip opens all spots that produce that material; the encyclopedia link opens the full ID and field guide.

Nearby rockhounding spots

Other rockhounding spots within driving distance of Knauertown.

Across the state line from Knauertown

Knauertown is close enough to the Pennsylvania border that the next-closest rockhounding spots are in a neighboring state. Worth knowing if you are already on the road.

Knauertown FAQ

Where is Knauertown?+

Knauertown is in Chester County, Pennsylvania, at 40.18374, -75.73150. Nearest road: Saint Peters Road.

What rocks and minerals can you find at Knauertown?+

Knauertown is reported to produce Apatite, Apophyllite, Azurite, Green Calcite, Chrysocolla, Malachite, Pyrite, Quartz, Rhodochrosite, Stilbite.

Is collecting allowed at Knauertown?+

Generally open to casual rockhounding. Most public-tagged spots sit on BLM, U.S. Forest Service, or other federal land where reasonable hand collecting of common rocks and minerals is allowed. Confirm posted rules and active mining claims before you dig. Always confirm current rules with the managing agency before a trip.

What tools should I bring to Knauertown?+

A rock hammer, gloves, and safety glasses are enough for oxidized copper ground. Look for green and blue staining on weathered rock and in old dump piles.

When is the best time to visit Knauertown?+

The most comfortable months at Knauertown are March to November.

How do I get to Knauertown?+

Open the directions link to navigate to 40.18374, -75.73150 in Google Maps. The nearest road is Saint Peters Road.

More rockhounding in Pennsylvania

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Open Knauertown on the map

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