Agates near Williamsport, PA

24 of the mapped rockhounding spots within 150 miles of Williamsport report agate. The closest is Carlisle, about 72 miles out (1 hr 30 min drive).

Agates are banded chalcedony nodules that survive long after their volcanic host rock rots away, which is why they concentrate in gravel bars, beaches, and glacial deposits far from where they formed.

Map of 24 agate collecting spots within 150 miles of Williamsport, Pennsylvania

Closest agates spots to Williamsport

Types of agates reported near Williamsport

Counts reflect how many spots in this radius mention each variety.

Every agate spot within 150 miles of Williamsport

Sorted by distance from Williamsport. Tap a row for directions, access status, and nearby trips.

SpotCountyMineralsCoordinatesAccess
CarlisleShatto DriveCumberland County40.2203, -77.2154Public
HarrisburgPleasant View RoadYork County40.1651, -76.8443Public
Mt. Holly SpringsCold Springs RoadCumberland County
  • Agate Nodules
40.1091, -77.2391Public
Alsace TownshipSeidel RoadBerks County40.3670, -75.8656Public
Area Around Caledonia State ParkChambersburg Water Line TrailFranklin County39.9120, -77.4984Public
Rock Springs RunCedar Hill RoadLancaster County39.7351, -76.1414Public
Flintville (moss agate area)Shotgun Range TrailHarford County39.6973, -76.2613Public
PhiladelphiaBoy Scout BridgeDelaware County40.0130, -75.3895Public
3M QuarryRidge TrailSomerset County40.4583, -74.7135Public
FeastervilleOld Lincoln HighwayBucks County40.1530, -74.9537Public
BarnardsvilleOld Quarry RoadSomerset County40.7095, -74.5740Public
Bare Hills mining districtYellow TrailBaltimore County39.3871, -76.6523Public
Camden CountyDelaware River Heritage TrailCamden County39.9561, -75.1032Public
Bound BrookFire RoadSomerset County40.5890, -74.5678Public
SomervilleChimney Rock RoadSomerset County40.5847, -74.5672Public
Warren TownshipRed Hill RoadSomerset County40.6298, -74.5312Public
Burlington CountyWest Avenue Nature TrailsBurlington County40.0650, -74.9354Public
KingstonGeorgetown-Franklin TurnpikeSomerset County40.3971, -74.6095Public
Pompton LakesI 287Passaic County41.0054, -74.3071Public
Union CountyValley RoadSomerset County40.6602, -74.4091Public
Genesse River AreaNorthview TerraceMonroe County43.1872, -77.6248Public
Houdaille QuarryPhillipsburg-Newark ExpresswayUnion County40.7100, -74.3348Public
HaledonValley View RoadPassaic County40.9365, -74.1943Public
Prospect Park QuarryNorth 16th StreetPassaic County40.9404, -74.1748Public

Agates near Williamsport FAQ

Where can I find agates near Williamsport?+
24 mapped spots within about 150 miles of Williamsport report agate. The closest is Carlisle in Cumberland County County, roughly 72 miles away (1 hr 30 min drive). The full list with coordinates is on this page.
Can I collect agates on public land near Williamsport?+
24 of the 24 spots here sit on land mapped as publicly accessible. Casual hand collecting of common rocks and minerals is allowed on most BLM and Forest Service land with limits set by the local field office; national parks and most state parks are closed to collecting. Confirm current rules with the managing agency before a trip.
What is the fastest way to spot an agate in a gravel bed?+
Look for waxy luster and translucence rather than color. Wet the stone or look right after rain: agate glows softly at thin edges when backlit, while jasper and chert stay opaque. Banding clinches it but is often hidden until the stone is cracked or tumbled.
How far from Williamsport do I need to drive?+
The nearest agate spot is about 72 miles out, and the farthest on this list is 145 miles. Most fall inside a normal weekend day-trip radius.

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