Rockhounding near Casper, WY

77 mapped rockhounding spots within 150 miles of Casper — most are inside a 2 to 3 hour drive. Below: a map, the closest spots, what they produce, and full coordinates with access notes.

Covering parts of Wyoming, South Dakota, Nebraska, Colorado.

Closest rockhounding spots to Casper

The 6 nearest mapped spots, with straight-line distance and an approximate drive time.

Most-reported finds near Casper

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

Every spot within 150 miles of Casper

Sorted by distance from Casper. Tap a row to open the spot detail page with full directions, access status, and nearby trips.

Spot	County	Minerals	Coordinates	Access
CasperBryan-Evansville Road	Natrona County	Agate Alabaster Amazonite	42.8623, -106.2854	Public
CasperPonderosa Road	Natrona County	Beryl Muscovite Tourmaline	42.7141, -106.2560	Public
Poison Spider Creek	Natrona County	Agate Chalcedony Jasper	42.8202, -106.5635	Public
Deer Creek Canyon MineNegro Hill Road	Converse County	Chromite	42.6727, -106.0411	Public
Box Elder Canyon	Converse County	Geode Quartz	42.7696, -105.7727	Public
Moss Agate HillSpring Canyon Road	Converse County	Moss Agate Chalcedony Jasper	42.6405, -105.6848	Public
Shirley Basin	Carbon County	Opalized Wood	42.3318, -106.2585	Public
Converse CountyH-V Road	Converse County	Copper Chalcopyrite	42.4938, -105.7870	Public
Granite Mountains	Natrona County	Chalcedony	42.4717, -107.1796	Public
Sweetwater River	Natrona County	Sweetwater Agate	42.4788, -107.3680	Public
Split RockOregon Trail	Natrona County	Ruby	42.4806, -107.5293	Public
Sage Hen Creek	Fremont County	Agate Chalcedony Jasper	42.5813, -107.5826	Public
Como Ridge	Carbon County	Petrified Dinosaur Bone	41.8752, -106.0746	Public
Fremont County	Fremont County	Sweetwater Agate Nephrite Jade Jade	42.3204, -107.5345	Public
Seminoe Reservoir	Carbon County	Jade	41.8892, -106.9752	Public
Green MountainGreen Mountain Road	Fremont County	Banded Agate Moss Agate Aventurine Garnet Sapphire	42.3574, -107.7236	Public
Cooney Hills	Platte County	Garnet	41.9816, -105.1138	Public
Copper MountainBadwater Road	Fremont County	Uranium	43.3799, -107.8843	Public
HartvilleLakeside Road	Platte County	Agate Moss Agate Chalcedony	42.3221, -104.7482	Public
WheatlandWY 34	Platte County	Moonstone Labradorite	41.9392, -105.1064	Public
SunriseSunrise Highway	Platte County	Arsenopyrite Barite Copper	42.3358, -104.7016	Public
Shoshoni	Fremont County	Aquamarine Beryl Feldspar Muscovite	43.2023, -108.0641	Public
Rawhide ButtesSilver Springs Road	Goshen County	Azurite Bornite Chalcocite Chrysocolla Malachite	42.5935, -104.5130	Public
SweetwaterGraham Road	Fremont County	Sweetwater Agate	42.5605, -108.1254	Public
Crazy Woman CreekI 90	Johnson County	Opalized Wood Silicified Wood	44.2548, -106.4263	Public

Casper rockhounding FAQ

Where can I go rockhounding near Casper?+

There are 77 mapped rockhounding spots within about 150 miles of Casper, Wyoming. The closest is Casper in Natrona County, roughly 1 miles away. The full list is on this page with coordinates and drive times.

What rocks and minerals can you find near Casper?+

Spots within driving distance of Casper most commonly produce jasper, agate, chalcedony, fossils, gypsum, opalized wood.

Is rockhounding legal near Casper?+

Casual hand collecting of common rocks and minerals is allowed on most BLM and U.S. Forest Service land, with limits set by the local field office. National parks, most state parks, and tribal land are off-limits. Each spot page on this site lists access status; always confirm current rules with the managing agency before a trip.

How far do most rockhounders drive from Casper?+

Most weekend trips from Casper fall inside a 2 to 3 hour drive, which is roughly the 150-mile radius shown on this page. Closer spots are good for half-day outings; the outer ones are better as overnight trips.

More state coverage

The spots above span 4 states. Open the state page for the full county-by-county view.

Pack Casper's rockhounding map in your pocket

Open RockHoundR for live land overlays, weather, geology, directions, and saved finds — wherever the drive takes you.