Rockhound Locations in Pennsylvania

Home » Pennsylvania

Here at Rockhounding Maps, we give you access and information to the best dig sites for crystals and minerals in Pennsylvania.  On top of that, we’ve created a resource page to assist with answering all of your gem and mineral collecting questions.

We hope you enjoy your time on our site and come back often because we’re always adding new dig locations and crystal collecting updates. This is a great resource for anyone who loves rockhounding, from beginners to experts alike!

Rockhounding in Pennsylvania is a great way to discover the state’s diverse geology and fossilized wildlife. The number of potential collecting sites here makes it an excellent location for those interested not only in rocks, but also minerals that can be found within them!

We are here for any questions or concerns that might arise about your adventures in mineral collecting.

Pennsylvania Rockhound Locations

The state of Pennsylvania offers a lot of incredible rockhound locations to explore. Whether you live in the area or plan to visit any time soon, you’ll want to check out these fantastic rock-hounding locations in Pennsylvania.

Have you ever dreamed of going on a rock-hounding adventure in Pennsylvania? Rockhounds can find Agate, Jasper, Geodes, Serpentine, and other crystals. With its diverse landscape, Pennsylvania can be a perfect place for you to hunt for rocks!

Be polite wherever you explore. Always pack out what you packed in. Meaning if you stop for a snack while rockhounding at any site, clean up after yourself and pack your trash items back out with you.

Always do your research regarding laws and regulations, and don’t forget to ask for permission to access an area and collect specimens.

This article will discuss the top rockhound locations in Pennsylvania and the different types of rocks and minerals you can collect. Don’t forget to make it to the bottom of the page because we list out the best rock and mineral societies in the state. If you’re serious about collecting rocks then you’ll want to join one of these amazing clubs.


green epidote cluster


If you’re an active rock collector in Pennsylvania then send us an email about your favorite locations and we will feature you on the site and we might sponsor you as well. That’s right, we will pay you to go dig for rocks and minerals.

So, if you’re ready to embark on a rock-hounding journey, then grab your rock hammer, and let’s get started!


Dig For Agate and Jasper

Location NameLongitude and LatitudeRocks and Gemstones
Caledonia State Park (can not collect in the park)39.911970, -77.498383Agate, Jasper
Reading in Schuylkill River40.299785, -75.916429Jasper
Feasterville area40.153015, -74.953694Agate, Chalcedony, Chert
Morrisville, Delaware River40.216550, -74.776349Jasper
Newtown in Neshaminy Creek40.240624, -74.970806Jasper, Petrified wood
Riegelsville40.593752, -75.183460Jasper, Quartz
Carlisle40.220346, -77.215366Agate, Quartz crystals, Jasper, Amethyst
Mt. Holly Springs40.109064, -77.239094Agate
Rock Springs Run39.735058, -76.141400Moss Agate
Allentown40.597357, -75.441216Jasper, Chert
Marlboroville40.347958, -75.410865Red Jasper
Alsace Township40.366971, -75.865564Chalcedony, Jasper, Agate
Philadelphia40.013009, -75.389539Agate, Petrified wood, Chalcedony, Chert, Jasper,
Jim Thorpe40.872908, -75.768816Jasper
Stroudsbrug area gravels 40.990457, -75.134704Agatized coral, Quartz crystals
Harrisburg area40.165058, -76.844289Agate, Chalcedony, Opal, Quartz crystals


McAdoo is a beautiful woodland area in Pennsylvania. It’s also one of the best places for rockhounds to begin their rockhounding journey in PA. This area offers an abundance of clear quartz crystals. You might also find petrified wood and small concentrations of Amethyst and Smoky Quartz in McAdoo.

The Quartz is seemingly easy to find in McAdoo. While some surface-level quartz can be found, there are large concentrations of this specimen just beneath the surface. That said, you shouldn’t need any complicated tools to bring home a decent bounty of Quartz.

The wooded regions of McAdoo are free to explore and hunt. However, you’ll want to be careful when you’re out and about. During the autumn and winter, you can count on a heavy hunter’s presence as they’re out there stalking the area’s whitetail deer population. Honestly, it’s best to avoid the area entirely during hunting seasons unless you have a general understanding of a hunter’s etiquette. Wearing a bright orange vest and avoiding the hunters is your safest bet if you choose to visit during hunting season.

Because of the seasonal risks and the fact that there is a lack of variety in geodes, it may be best to leave this area for experienced rockhounds. When the hunting season has passed, the site is safe for anyone to explore.


Dig For Geodes

Location NameLongitude and LatitudeRocks and Gemstones
North Vandergrift, Gravel Bar Hollow40.607232, -79.545016Geodes, Sphalerite
Crystal Cave40.525624, -75.842357Geodes
Upland area39.874783, -75.379120Amethyst Geodes
Grubb Lake and Mud Lake40.060097, -76.449375Limonite Geodes


While trilobites may not be as highly sought-after as jade, amethyst, and other beautiful gemstones, they offer a relatively rare glimpse into a time that’s long gone. And they’re abundant in Pennsylvania’s Mahantango Formation.

Trilobites are castings of fossilized marine life. They’re typically relatively small, but there are large specimens that exist, and they can be quite valuable. Regardless, a trilobite can make an interesting addition to any rockhound’s collection.

Collecting trilobites requires a bit of caution and skill. Trilobites are hidden within layers of sandstone that need rockhounds to splint to find the specimens. That said, the trilobites you’re working so hard to collect can be destroyed if one’s not careful.

If you’re in Pennsylvania, I suggest traveling along Mahantango Creek to look for the formation. It’s free to the public, but you’ll need some essential tools to safely remove the fossils. The formation extends into West Virginia and Maryland. So, you should check out the area if you live close to Pennsylvania’s border.

While it’s not likely that you’ll find geodes at the formation, they are present. However, they’re typically buried deep beneath the surface and are not nearly as common as trilobites. Suppose you’re interested in minerals and crystals. In that case, you’ll want to pass on this rock-hounding location since this area is for fossil hunters.


Dig For Gems

Mt. Pisgah40.871449, -75.745398Carnotite, Chlorite, Mica, Pyrite, Quartz
Lemont general area40.850495, -77.822598Quartz crystals
McAdoo40.889889, -75.976767Quartz crystals
Hazelton and White Haven40.966493, -75.921077Pyrite, Quartzite
Monroe County40.937702, -75.284377Calcite, Pyrite, Fluorite
Kunkeltown area40.846937, -75.452502Quartz crystals, Azurite
Easton area quarries40.747247, -75.287088Chert, Flint, Apatite, Epidote, Pyrite, Quartz crystals, Serpentine,
Etna40.534652, -79.961465Barite, Calcite, Pyrite, Sphalerite
Girty40.635353, -79.407249Hematite, Magnetite, Calcite, Chert, Pyrite
Sherman Valley40.076424, -78.273222Calcite, Orthoclase, Limonite, Quartz crystals, Tourmaline, Zircon
Morrison Cove40.243705, -78.385242Herkimer diamonds, Amethyst, Calcite crystals
Waterside40.171217, -78.393587Calcite, Chalcedony, Chert
Claysburg40.341151, -78.419261Chert, Quartz crystals
Aughwick Creek, near Fort Littleton40.151088, -77.949227Barite, Calcite, Chalcopyrite, Pyrite, Quartz crystals
Mapleton area exposures40.379604, -77.950654Quartz crystals
Union Furnace, Orbisonia40.624248, -78.165700Calcite crystals, Fluorite
Derry area washes40.348798, -79.268090Quartz crystals


The Historic Crystal Cave isn’t a free site for rockhounds, but it is easy to access, and you’re almost guaranteed to find worthwhile specimens without having to break your back, pulling them out of the ground.

The owner of the cave offers buckets of loose sediment for rockhounds to sift through at a relatively reasonable price. There are many different geodes to find, but the most commonly found types are forms of quartz.

Historic Crystal Cave is an excellent place for rockhounds to go if you don’t have a full day to dedicate to rockhounding. The environment is also ideal for beginners. However, you can find more significant, more valuable specimens if you head out into some of the remote locations on this list. If you’re a seasoned geode hunter, you may be interested in finding another rock-hounding location.


Dig For Petrified Wood

Location NameLongitude and LatitudeRocks and Gemstones
South Bethlehem40.998822, -79.344384Jasper, Petrified wood
Greensburg area40.324737, -79.476122Petrified wood
Bainbridge40.108072, -76.669396Petrified wood
Churchtown40.170015, -75.913266Petrified wood
Newtown in Neshaminy Creek40.240624, -74.970806Jasper, Petrified wood
Bucks County40.270070, -75.117156Petrified wood
Maple Glen40.231632, -75.099430Petrified wood
York Haven40.099620, -76.747321Petrified wood
Philadelphia40.013009, -75.389539Petrified wood, Jasper


Southern Public Land isn’t one set location; it’s more of a group of sites. The entire southeastern section of Pennsylvania is home to Triassic-era petrified wood. While the wood isn’t as fancy or elaborate as the specimens you’ll find in places like Washington and Arizona, it is excellent for making beautiful carvings. Not to mention, they’ll look fantastic in any collector’s cabinet, which makes them incredibly valuable to artisans and whittlers.

One of the tricky things is rockhounds will have to hunt for these specimens on public land, which can be a problem. Most of the land in the southeastern portion of Pennsylvania is privately owned, and homeowners don’t necessarily like it when people go exploring and scrounging around on their personal property.

You can visit any public waterway or park to find legal rock-hounding locations. Try and check the gravel beside riverbanks and creeks. This is where most of the petrified wood is found, and it’s completely legal to take home what you find. If you’re really lucky, you might come across some agate-based wood specimens. These specimens are filled with small, amber-colored deposits, and they’re prized by hardcore rockhounding collectors.


Dig For Crystals

Location NameLongitude and LatitudeRocks and Gemstones
Prospect Park39.877371, -75.305881Kyanite, Feldspar crystals
Bridgeport along Schuylkill River40.098673, -75.327153Calcite, Chalcedony, Dolomite, Jasper, Malachite, Sphalerite
Valley Quarry, Gettysburg (clubs only, by appt.)39.803420, -77.212595Epidote, Chrysocolla, Chalcopyrite
Macungie40.503074, -75.525450Star Sapphires
Rossville Road Cut40.071672, -76.923591Malachite, Azurite
Lebanon County40.330361, -76.556358Chalcopyrite, Magnetite, Malachite, Pyrite
Cornwall old mining dumps 40.254788, -76.397826Actinolite, Andradite, Calcite, Chlorite, Diopside, Epidote, Fluorite, Garnet, Labradorite, Magnetite, Moonstone, Pyrite
Schuylkill County40.664049, -76.382449Pyrite (cubes)
Meckley’s Quarry near Mandata (clubs only, by appt.)40.675563, -76.831961Celestine (gem-quality)
Eureka40.257564, -75.186327Quartz crystals (smoky quartz)
Lancaster, Blue Ball, and Brownstown40.134709, -76.060910Calcite (dogtooth), Fluorite, Hematite, Quartz crystal, Rutile, etc.
Brandywine Creek near Chadd’s Ford39.854353, -75.598857Amethyst
Chester Creek39.873666, -75.460549Amethyst, Quartz crystals (smoky)
Marple general area39.938006, -75.416208Amethyst, Quartz crystals (clear, rutilated)
Blue Hill39.946686, -75.423599Albite, Amazonite, Beryl, Feldspar, Sunstone, Quartz crystals
Crum Creek near Swarthmore39.922733, -75.364172Golden Beryl, Amethyst, Garnet, Quart crystals
Little Rocky Ridge40.033502, -77.325705Hematite, Quartz
East Branch Naamanm Creek39.825218, -75.445624Sphene, Quartz crystals, Garnet


The Echo is an old mine system once used by coal miners decades ago. The mine’s been stripped of all of its coal. However, miners left massive deposits of Quartz behind. If you’re a seasoned rockhound with a desire to find large specimens of quartz for your collection, you might want to check out The Echo on your next exploration.

The Echo is free to enter, but your safety is on you. This is because the location isn’t manned by a safety team, nor do they have anyone on standby. You will also have to bring the proper tools required to move around in an old mine. You’ll need to bring your best rockhounding tools because you’ll be pulling specimens out of the walls.

The Echo doesn’t house many geodes or many other varieties of stones. However, the main thing that keeps rockhounds coming to this location is the size of the Quartz. The Echo Mine is relatively close to McAdoo, and once you enter the town, it’s easy to find. For your safety, only go as deep as you have to unless you are highly experienced with traveling mine systems.


cut and polished geodes

Rock And Mineral Societies

Joining a couple of rockhound clubs or societies can be highly beneficial for members. Not only will you get the chance to meet like-minded individuals, but it opens up many possibilities to learn more about rockhounding and its many avenues. 


Central Pennsylvania Rock and Mineral Club, Inc.

The Central Pennsylvania Rock and Mineral Club, Inc. is an excellent resource for enthusiasts of all interest levels and expertise. This non-profit educational organization is affiliated with the Eastern Federation of Mineralogical and Lapidary Societies, as well as the American Federation of Mineralogical Societies.

Becoming a member of this club provides people access to fun and educational field trips, learning more about geology and the lapidary arts, listening to speakers, annual instruction in jewelry making, and more. Junior memberships are for ages 8 through 17 and only cost $7 a year. Adult memberships run for $15, and a joint membership (for two people) is only $25.


Mineralogical Society of Northeastern Pennsylvania

The Mineralogical Society of Northern Pennsylvania started in 1973 and has been running ever since. Members gather for monthly meetings on the last Sunday of every month, from September through June. There are various field trips to museums and hikes to collect specimens throughout the summer.

This rockhound society holds its Annual Club Picnic in August at the Francis Slocum State Park. The annual Christmas party typically has a large turnout. Member’s areas of interest include rocks, minerals, crystals, fossils, gems, trade shows, jewelry making, micro-mounts, wire wrapping, lapidary arts, and more.


The Nittany Mineralogical Society, Inc.

The Nittany Mineralogical Society, Inc. is an excellent society with a lot to offer members. Not only does the club hold monthly meetings, but there are also meeting for the children. 

Not only do society members get to attend field trips to collect specimens and experience earth science first-hand, but they also get to participate in various outreach and community programs within the society’s area of interest.

Nittany Mineralogical Society is a member of the Eastern Federation of Mineralogical and Lapidary Societies. They’re an affiliate of the American Federation of Mineralogical Societies. The club contributes to scholarships and other projects of the federations.

Membership prices start at $20 per individual member, $30 for a family, $15 for senior citizens, and only $7 for students.


Berks Mineralogical Society

Berks Mineralogical Society represents Berks County, Pennsylvania. The society was formed in 1957 by rock and mineral enthusiasts to share their appreciation for geology.

Members can partake in field trips to collect minerals and fossils. They travel to many areas throughout the state, and some of the locations require special permission, so members won’t want to miss out on those. Annual dues are $20 for individuals and $25 per family. Members can attend collecting field trips, learn more about their interests in earth science, and increase their knowledge of gems, rocks, minerals, and fossils.

Joining a rockhound club or society in Pennsylvania or any state will open many avenues to this incredible hobby. Whether you’re interested in finding prime rockhound locations or being part of a group of like-minded individuals, there’s something for the rockhound in all of us.