About this location
Nottingham County Park is a 731-acre Chester County park sitting on one of the largest serpentine barrens on the East Coast — bedrock is serpentinized ultramafic rock, remnants of ancient ocean crust thrust onto the continent during the Taconic orogeny.[1] The land has real mining history: William Scott began mining chromite here in 1826, and industrial chemist Isaac Tyson Jr. later bought up mineral rights across the broader State Line Serpentine District, shipping chromite ore for paint pigment and textile dye until global competition ended local production around 1900.[1] The National Park Service designated it a National Natural Landmark in 2008 for its unique barrens ecology.[1] This is a real, historically significant mineral locality, but it functions today as a hiking and nature park — most of the old quarries are closed off, and it's not set up as an active dig site.
Always seek permission where required, follow local laws, and practice Leave No Trace. Locations and details are community-submitted and may be inaccurate. Not sure what's legal here? Read our full guide to rockhounding laws by land type.
Found Here
Documented historically for the district's quarries: chromite, magnetite, deweylite, and brucite, along with quartz veins carrying crystal-lined vugs.[1] UNVERIFIED for the DB's additional listed specimens:
- Serpentine — the park's defining bedrock, visible throughout.
- Chromite, Magnetite, Deweylite, Brucite — documented from the site's historic quarries; most active quarries are now closed to the public, per available sources.[1]
- Garnet, Feldspar, Tourmaline, Albite — listed in our database but not confirmed by any source specific to this park; treat as unverified.
Difficulty
Getting there
Nottingham County Park is in West Nottingham Township, southern Chester County, Pennsylvania, near the Maryland state line — roughly halfway between Philadelphia and Baltimore.[2] Standard vehicle access via county park roads.
Collecting here
UNVERIFIED. The park's own materials describe camping, pavilion rentals, a fitness trail, and playgrounds, but say nothing explicit about rock or mineral collecting.[3] Sources note most of the historic quarries here are now closed to the public.[1] Treat this primarily as a look-and-learn geology/nature stop rather than a confirmed dig site until Chester County Parks confirms current collecting policy.
Know before you go
Managed by Chester County Parks and Recreation.[3] No explicit collecting policy was found on the park's own page — confirm current rules directly with Chester County Parks before planning to collect specimens. Serpentine barrens soil supports unusual, sometimes rare plant communities; stay on trail where marked and avoid disturbing vegetation near any old quarry pits.
Location on Map
Coordinates: 39.73517, -76.04854
Nearby rockhounding locations
- Wrightsdale — Brucite, ChromitePA · 4.5 mi
- Rock Springs Run — Moss AgatePA · 4.9 mi
- Cecil County — Kammererite, SerpentineMD · 5.3 mi
- Rock Springs — Kammererite, SerpentineMD · 6.9 mi
- Funks Pond Recreational Area — Kammererite, SerpentineMD · 7.9 mi
- Castleton — Quartz, TourmalineMD · 9.7 mi
More Serpentine locations in Pennsylvania
Frequently asked questions
Can you collect rocks at Nottingham County Park, Pennsylvania?
Unclear — the park's own materials don't address collecting policy, and sources indicate most of the historic quarries here are closed to the public. Confirm with Chester County Parks before planning to collect.
What minerals were historically mined at Nottingham County Park?
Chromite was the primary commodity, mined from 1826 into the early 1900s; magnetite, deweylite, and brucite are also documented from the site's old quarries.
Why is Nottingham County Park a National Natural Landmark?
It sits on one of the largest serpentine barrens on the East Coast, a rare ultramafic-rock ecosystem that supports unusual plant communities — designated in 2008.
⚠️ Always verify current regulations, weather conditions, and access requirements before visiting any location. Information provided is based on community submissions and may not be current or accurate.
Sources
- WebSearch synthesis (Islands.com, naturalmidatlantic.blogspot.com, MyChesCo, State Line Serpentine Barrens Wikipedia) — serpentine geology, 1826 chromite mining start by William Scott, Isaac Tyson Jr. mineral rights purchase, chromite/magnetite/deweylite/brucite mineral list, 2008 National Natural Landmark designation, note that most active quarries are closed to the public.
- https://en.wikipedia.org/wiki/State_Line_Serpentine_Barrens — confirms the broader serpentine district spanning the PA/MD border.
- https://www.chesco.org/4626/Nottingham-County-Park — official Chester County Parks page; lists permitted park activities (camping, pavilions, fitness trail, playgrounds) with no explicit statement on rock/mineral collecting.
Recommended Gear for Pennsylvania

Estwing E3-22P Rock Pick
The industry-standard 22oz geological hammer. One-piece forged steel with shock-reduction grip.

Clear Anti-Fog Safety Glasses (4 Pack)
Adjustable, anti-fog lenses for clear vision in any conditions. About $5 per pair.

Watertight Medical Kit
Compact, waterproof first aid kit with bandages, moleskin, and field essentials.

National Audubon Society Field Guide to Rocks and Minerals
The classic pocket reference for identifying over 600 rocks and minerals in North America.
Clicking these links supports rockhounding.org at no extra cost to you — it's how we keep these maps and resources free for everyone.
Comments
Comments
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Logbook Records
No public logs yet
Be the first to share your experience at this location!