Hartville — Rockhounding in Platte County, Wyoming
Hartville is the southeastern Wyoming choice for Guernsey Limestone chalcedony, including moss agate, dendritic agate, stalactitic agate, and youngite noted by WSGS. Its appeal is the combination of lapidary-grade silica and mining-district geology in a part of the state outside the central Sweetwater jade and agate belt. Reported finds include agate, moss agate, chalcedony. Below: coordinates, access notes, nearby spots, and trip-planning links.
Hartville photos
Public image records connected to this spot or its reported material, with source and license attribution.
Map showing Hartville in Platte County, Wyoming
Quick details
- Access
- Public area
- County
- Platte County
- State
- Wyoming
- Nearest road
- Lakeside Road
- Postcode
- 82214
- Coordinates
- 42.32213, -104.74818
Land & collecting status
Generally open to casual rockhounding
Most public-tagged spots sit on BLM, U.S. Forest Service, or other federal land where reasonable hand collecting of common rocks and minerals is allowed. Confirm posted rules and active mining claims before you dig.
Public-land rules vary by agency, season, and field office. The RockHoundR app pulls live BLM, USFS, NPS, and tribal overlays so you can see exactly which agency manages the ground at this spot.
Sources & verification
Spot details combine the public RockHoundR location dataset, normalized mineral labels, agency land-status checks in the app, and community submissions. Coordinates are approximate until verified in the field.
State guidance last verified:
- BLM Wyoming
- Wyoming State Geological Survey
- Fossil Butte National Monument
- Community submissions reviewed against published agency rules
Found at Hartville
Each chip opens all spots that produce that material; the encyclopedia link opens the full ID and field guide.
Nearby rockhounding spots
Other rockhounding spots within driving distance of Hartville.
- SunrisePlatte County, Wyoming · 3 mi awayArsenopyrite, Barite, Copper
- Jay EmGoshen County, Wyoming · 22 mi awayAgate, Malachite, Onyx
- Rawhide ButtesGoshen County, Wyoming · 22 mi awayAzurite, Bornite, Chalcocite
- Cooney HillsPlatte County, Wyoming · 30 mi awayGarnet
- WheatlandPlatte County, Wyoming · 32 mi awayMoonstone, Labradorite
- Chugwater CreekLaramie County, Wyoming · 52 mi awayBloodstone
- Moss Agate HillConverse County, Wyoming · 53 mi awayMoss Agate, Chalcedony, Jasper
- Converse CountyConverse County, Wyoming · 54 mi awayCopper, Chalcopyrite
Across the state line from Hartville
Hartville is close enough to the Wyoming border that the next-closest rockhounding spots are in a neighboring state. Worth knowing if you are already on the road.
- Agate Fossil BedsSioux County, Nebraska · 52 mi awayAgate, Jasper, Chalcedony
- Sioux CountySioux County, Nebraska · 62 mi awayChalcedony, Celestite, Fossils
- Scottsbluff BadlandsScotts Bluff County, Nebraska · 62 mi awayFossils
- MontroseSioux County, Nebraska · 66 mi awayAgate, Jasper, Fossils
- Little BadlandsSioux County, Nebraska · 70 mi awayVertebrate Fossils
- Crawford (jasper area)Dawes County, Nebraska · 73 mi awayFairburn Agate, Jasper, Petrified Wood
Hartville FAQ
Why is Hartville one of the best rockhounding spots in Wyoming?+
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More rockhounding in Wyoming
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