Agates near Casper, WY

33 of the mapped rockhounding spots within 150 miles of Casper report agate. The closest is Casper, about 1 miles out (2 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 33 agate collecting spots within 150 miles of Casper, Wyoming

Closest agates spots to Casper

Types of agates reported near Casper

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

Every agate spot within 150 miles of Casper

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

SpotCountyMineralsCoordinatesAccess
CasperBryan-Evansville RoadNatrona County42.8623, -106.2854Public
Poison Spider CreekNatrona County42.8202, -106.5635Public
Moss Agate HillSpring Canyon RoadConverse County42.6405, -105.6848Public
Sweetwater RiverNatrona County
  • Sweetwater Agate
42.4788, -107.3680Public
Sage Hen CreekFremont County42.5813, -107.5826Public
Fremont CountyFremont County
  • Sweetwater Agate
  • Nephrite Jade
  • Jade
42.3204, -107.5345Public
Green MountainGreen Mountain RoadFremont County42.3574, -107.7236Public
HartvilleLakeside RoadPlatte County42.3221, -104.7482Public
SweetwaterGraham RoadFremont County
  • Sweetwater Agate
42.5605, -108.1254Public
Warm SpringsEmigrant TrailFremont County42.4908, -108.1721Public
Laramie MountainsAlbany County41.5733, -105.5009Public
Jay EmUS Highway 85Goshen County42.4640, -104.3636Public
Wind River & StreamsCountry Club DriveFremont County43.0180, -108.4526Public
WorlandWashakie County43.9624, -107.8925Public
BuffaloJohnson County44.4527, -106.5548Public
Red DesertTipton-North RoadSweetwater County41.8194, -108.2799Public
WamsutterSweetwater County
  • Turritella Agate
41.5699, -108.0076Public
Atlantic CityRiverview CutoffFremont County42.4895, -108.7275Public
LanderSquaw Creek RoadFremont County42.8234, -108.7926Public
Tepee CanyonPleasant Valley RoadCuster County43.5528, -103.9454Public
MontroseMontrose RoadSioux County42.9250, -103.7360Public
Agate Fossil BedsRiver RoadSioux County42.4366, -103.7359Public
Fremont CountyContinental Divide National Scenic TrailFremont County42.5377, -108.9406Public
Fort WashakieFremont County43.1318, -108.9788Public
Hell CanyonHell Canyon TrailCuster County43.7494, -103.8421Public

Agates near Casper FAQ

Where can I find agates near Casper?+
33 mapped spots within about 150 miles of Casper report agate. The closest is Casper in Natrona County County, roughly 1 miles away (2 min drive). The full list with coordinates is on this page.
Can I collect agates on public land near Casper?+
33 of the 33 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 Casper do I need to drive?+
The nearest agate spot is about 1 miles out, and the farthest on this list is 149 miles. Most fall inside a normal weekend day-trip radius.

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