AgatePA
Allentown
Allentown is a documented mineral occurrence near PA. Reported specimens include Jasper, Chert. Verify land access and collecting rules before visiting.
View detailsAgate & Jasper rockhounding sites in Pennsylvania
Where to find agates and jasper in the U.S. — Lake Superior beaches, Ellensburg blue, Wyoming Sweetwater fields, Texas Terlingua, Mojave desert beds, and colorful chalcedony shorelines.
18 agate & jasper destinations in Pennsylvania.
Rockhounding sites in Pennsylvania — agate & jasper: 18 spots in our directory. Sort live from your phone with near me, or browse all U.S. agate & jasper rockhounding sites and the Pennsylvania state page.
Guides & hubs: Pennsylvania rockhounding guide
Agate & Jasper collecting in Pennsylvania
Where to find agates and jasper in the U.S. — Lake Superior beaches, Ellensburg blue, Wyoming Sweetwater fields, Texas Terlingua, Mojave desert beds, and colorful chalcedony shorelines.
We currently document 18 agate & jasper collecting sites in Pennsylvania. Each listing includes original descriptions, visitor notes, and last-updated dates when available.
What to know before you collect
Agate & Jasper destinations in Pennsylvania vary widely in access, season, and legality. Some are official recreation areas; others are informal gravel bars. Read the access and safety sections on each listing — never assume collecting is allowed without checking current signage.
For trip planning beyond this filter, browse the full Pennsylvania state page, our guides, or use near me to sort by distance from your location.
ChalcedonyPA
Alsace Township
Alsace Township is a documented mineral occurrence near PA. Reported specimens include Chalcedony, Jasper, Agate. Verify land access and collecting rules before visiting.
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Area Around Caledonia State Park
Area Around Caledonia State Park is a documented mineral occurrence near PA. Reported specimens include Agate, Jasper. Verify land access and collecting rules before visiting.
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Carlisle
Carlisle is a documented mineral occurrence near PA. Reported specimens include Banded Agate, Quartz crystals, Jasper, Amethyst. Verify land access and collecting rules before visiting.
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Claysburg
Claysburg is a documented mineral occurrence near PA. Reported specimens include Chert, Quartz crystals. Verify land access and collecting rules before visiting.
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Easton
Easton is a documented mineral occurrence near PA. Reported specimens include Chert, Flint, Apatite, Diopside, Epidote, Pyrite, Quartz crystals, Serpentine, Williamsite. Verify land access and collecting rules before visiting.
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Harrisburg
Harrisburg is a documented mineral occurrence near PA. Reported specimens include Agate, Amethyst, Chalcedony, Andradite Garnet, Opal, Quartz crystals, Silicified wood. Verify land access and collecting rules before visiting.
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Jim Thorpe
Jim Thorpe is a documented mineral occurrence near PA. Reported specimens include Jasper. Verify land access and collecting rules before visiting.
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Kingston
Kingston is a documented mineral occurrence near PA. Reported specimens include Jasper. Verify land access and collecting rules before visiting.
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Marlboroville
Marlboroville is a documented mineral occurrence near PA. Reported specimens include Red Jasper, Brown Jasper, Yellow Jasper, Sapphire. Verify land access and collecting rules before visiting.
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Morrisville
Morrisville is a documented mineral occurrence near PA. Reported specimens include Jasper. Verify land access and collecting rules before visiting.
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Mt. Holly Springs
Mt. Holly Springs is a documented mineral occurrence near PA. Reported specimens include Agate nodules. Verify land access and collecting rules before visiting.
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Newtown
Newtown is a documented mineral occurrence near PA. Reported specimens include Jasper, Petrified wood. Verify land access and collecting rules before visiting.
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Philadelphia
Philadelphia is a documented mineral occurrence near PA. Reported specimens include Agate, Petrified wood, Chalcedony, Chert, Jasper, Quartz crystals. Verify land access and collecting rules before visiting.
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Reading
Reading is a documented mineral occurrence near PA. Reported specimens include Jasper. Verify land access and collecting rules before visiting.
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Riegelsville
Riegelsville is a documented mineral occurrence near PA. Reported specimens include Jasper, Quartz. Verify land access and collecting rules before visiting.
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Rock Springs Run
Rock Springs Run is a documented mineral occurrence near PA. Reported specimens include Moss Agate. Verify land access and collecting rules before visiting.
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South Bethlehem
South Bethlehem is a documented mineral occurrence near PA. Reported specimens include Jasper, Petrified wood. Verify land access and collecting rules before visiting.
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